This report contains forward-looking statements that involve risks and uncertainties. You should not rely on forward-looking statements, which speak only as of the date of this Quarterly Report on Form 10-Q. The statements in this report that are not purely historical are forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended. We use words such as "anticipate," "believe," "plan," "expect," "future," "intend," "may," "will," "should," "estimate," "predict," "potential," "continue," and similar expressions to identify such forward-looking statements, but their absence does not mean that the statement is not forward looking. These forward-looking statements include, but are not limited to statements regarding:

• new and future products and services;

• our future business plans and growth strategy, including plans to reduce or expand specific operations;

• our expected sources of revenue;

• the expected demand for and benefits of our products and services for our customers and distribution partners;

• our strategic initiatives;

• seasonality of revenue and concentration of revenue sources;

• the anticipated benefits from the business and technologies we have acquired, or invested in, or may acquire or invest in;

• the anticipated development or acquisition of intellectual property and resulting benefits;

• the anticipated results of potential or actual litigation;

• our competitive environment;

• the impact of governmental regulation;

• employee hiring and retention, including anticipated reductions in force and headcount;

• the future payment of dividends;

• anticipated revenue and expenses;

• expected impacts of changes in accounting rules;

• use of cash, cash needs, and ability to raise capital;

• the condition of our cash investments and any income derived therefrom;

• the current or future state of financial or credit markets;

• the effect of fluctuations in foreign currency; and

• potential liability from contractual relationships.

Forward-looking statements are subject to known and unknown risks, uncertainties and other factors that may cause our results, levels of activity, performance, achievements, and prospects, and those of the Internet industries generally, to be materially different from those expressed or implied by such forward-looking statements. These risks, uncertainties, and other factors include, among others, those identified under Item 1A, "Risk Factors" and elsewhere in this report. We do not undertake any obligation to update publicly any forward-looking statements to reflect new information, events, or circumstances after the date of this Quarterly Report on Form 10-Q or to reflect the occurrence of unanticipated events.

Overview

InfoSpace, Inc. ("InfoSpace", "our" or "we") is a developer of search tools and technologies that assist consumers with finding content and information on the Internet. We use our metasearch technology to power our own branded Web properties and provide online search services to distribution partners.

We offer search services that enable Internet users to locate information, merchants, individuals, and products online. We offer search services through our Web properties, such as Dogpile.com, WebCrawler.com, InfoSpace.com, MetaCrawler.com, and WebFetch.com, as well as through the Web properties of distribution partners. Partner versions of our Web offerings are generally private-labeled and delivered with each distribution partner's unique requirements.

We were founded in 1996 and are incorporated in the state of Delaware. Our principal corporate office is located in Bellevue, Washington. We also have offices in Palo Alto, California and Bangalore, India. Our common stock is listed on the NASDAQ Global Select Market under the symbol "INSP."

Until the fourth quarter of 2007, InfoSpace was comprised of three businesses:
online search, online directory, and mobile. We sold our online directory business and mobile services business in the fourth quarter of 2007, and had previously exited other portions of our mobile business during 2007. In December 2007, as a result of the sales of those businesses, we committed to a plan to make operational changes to our business, which included a reduction in our workforce and, as part of the workforce reduction, consolidation of our facilities. Following the sale of our mobile and directory businesses, our revenues are derived almost exclusively from providing online search services.

We generate revenues primarily from our Web search services when an end user of our services clicks on a paid search link displayed on one of our owned and operated Web properties or displayed on a distribution partner's Web property. We receive paid search links for display as part of our search services from certain content providers, whom we refer to as our customers. In addition to revenues from search services, we earn other services revenue from certain distribution partners, such as a fixed monthly fee in exchange for portal infrastructure services.

Our ability to increase our online search services revenue generated through our owned and operated properties relies on growth in the volume of paid clicks, the fees advertisers pay our customers for these paid clicks, and the percentage of these fees our customers share with us. In recent periods, on our owned and operated properties, we have experienced an increase in paid clicks, primarily driven by our marketing initiatives, but the revenue generated through this increase has been more than offset by lower average fees per paid click from our customers.

Similar to the revenues earned on our owned and operated properties, revenues generated through the Web properties of our distribution partners are dependent upon growth in the volume of paid clicks, the fees advertisers pay our customers for these paid clicks, and the percentage of these fees our customers share with us. We have experienced steady growth in revenues from our search services offered through the Web properties of distribution partners, which has been a result of increasing revenues generated through the web properties of our existing partners and the launch of new partners. In recent periods, however, our customers' process of measuring the quality of paid clicks and adjusting the fees paid to us has adversely affected revenues generated through certain of our distribution partners' Web properties. In an effort to drive quality traffic to our customers, we continue to invest in product development to expand and improve the quality of our online search services offered to our distribution partners.

Engineering, operations, and product management personnel remain paramount to our ability to deliver high quality online search services as well as enhance our current technology and expand our product offerings. As such, we expect to continue to invest in our workforce and increase our research and development operations. Additionally, we may use our cash and short-term and long-term available-for-sale investments to acquire businesses and other assets.

Company Internet Site and Availability of SEC Filings

Our corporate Internet site is located at www.infospaceinc.com. We make available on that site our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, as well as any amendments to those filings, and other filings we make electronically with the U.S. Securities and Exchange Commission (the "SEC"). The filings can be found in the Investor Relations section of our site and are available free of charge. Information on our Internet site is not part of this Quarterly Report on Form 10-Q. In addition, the SEC maintains an Internet site at www.sec.gov that contains reports, proxy and information statements, and other information regarding us and other issuers that file electronically with the SEC.

Revenue Sources

Our customers are primarily search content providers. Google and Yahoo! each accounted for more than 10% of our revenues for the three months ended September 30, 2009 and 2008 and jointly accounted for 95% or more of our revenues in such periods, and we expect this concentration to continue in the foreseeable future. As such, if either of these customers reduces or eliminates the services they provide to us or our distribution partners, or if either of these customers is unwilling to pay us amounts that they owe us, our financial results may materially suffer.

Our main customer agreements are with Google and Yahoo! and both agreements expire in 2011. Each agreement may be renewed only upon mutual written agreement of the parties to the respective agreement. Through our Google and Yahoo! agreements, we receive certain search products and services from each party, including both non-paid and paid search links for display on our Web properties and the Web properties of our distribution partners. Both Google and Yahoo! reserve certain rights of approval over the use and distribution of their respective search products and services, and have requirements and guidelines regarding such use and distribution. If we or our search distribution partners fail to meet the requirements and guidelines promulgated under these customer agreements, Google and Yahoo! each have certain rights under the agreements to suspend or terminate our or our distribution partners' use and distribution of such customer's search products and services, and in the event of certain violations, to terminate their agreement with us. We and our distribution partners have limited rights to cure breaches of the requirements and guidelines, and both Google and Yahoo! may modify certain requirements and guidelines of their agreement with us pursuant to the terms of such agreement.

Google and Yahoo! each make certain representations and warranties to us in each agreement regarding their search products and services, and we make certain representations and warranties in each agreement regarding our use and distribution of their search products and services. The agreements also provide for various indemnification obligations of the parties with respect to the content and services of each party, and our distribution partners' use and distribution of Google and Yahoo!'s search products and services.

Overview of Third Quarter 2009 Operating Results

The following is an overview of our operating results for the three months ended September 30, 2009. A more detailed discussion, comparing our operating results for the three and nine months ended September 30, 2009 and 2008, is included under the heading "Historical Results of Operations" in this Management's Discussion and Analysis of Financial Condition and Results of Operations.

Revenues from continuing operations for the three months ended September 30, 2009 increased to $54.4 million from $39.5 million for the three months ended September 30, 2008. This increase was due to an increase in revenue from search results delivered through new and existing distribution partners partially offset by a decrease in revenue from search results delivered through our owned and operated properties. Revenues from search results delivered through owned and operated properties for the three months ended September 30, 2009 decreased due to a decrease in average fees per paid click that our customers share with us partially offset by an increase in paid click volume on our owned and operated properties, compared to the three months ended September 30, 2008. The decrease in average fees per paid click was the result of a decrease in advertiser fees paid per click to our customers and an increase in the proportion of revenues derived from our direct marketing initiatives on our owned and operated properties. Average fees paid per click for revenues derived through our direct marketing initiatives historically have been lower than the average fees per paid click for other revenues generated on our owned and operated Web properties. During the three months ended September 30, 2009 and 2008, 77% and 61% of our online search revenues were generated through our search distribution partners' Web properties, respectively. We generated approximately 47% and 36% of our online search revenues through the Web properties of our top five distribution partners for the three months ended September 30, 2009 and 2008, respectively. The Web properties of our top five distribution partners for the three months ended September 30, 2009 generated approximately 25% of our online search revenues for the three months ended September 30, 2008.

Content and distribution costs from continuing operations for the three months ended September 30, 2009 increased to $34.0 million from $18.3 million for the three months ended September 30, 2008, primarily due to increases in revenue from search results delivered through the Web properties of certain of our distribution partners.

Other operating expenses from continuing operations for the three months ended September 30, 2009 were $19.0 million, a decrease from $21.0 million for the three months ended September 30, 2008. Other operating expenses include expenses related to systems and network operations, product development, sales and marketing, general and administrative, and depreciation and amortization of intangible assets, and exclude restructuring and other, net. The decrease in other operating expenses from continuing operations for the three months ended September 30, 2009 from the three months ended September 30, 2008 was primarily attributable to a decrease in expenses relating to our reduced workforce, including personnel-related and contractor expenses.

For the three months ended September 30, 2009, we did not record any gain or loss on investments related to our auction rate securities or preferred shares and warrants to purchase shares in a privately held company. For the three months ended September 30, 2008, we recorded a loss on investments of $9.0 million on our auction rate securities investments and a loss on investments of $2.1 million related to preferred shares and warrants to purchase shares in a privately held company.

Other income, net for the three months ended September 30, 2009 was $472,000, as compared to $1.5 million for the three months ended September 30, 2008. The decrease was attributable to a decrease in interest income as a result of a decline in interest rates from the rates during the three months ended September 30, 2008. Additionally, we recorded an income tax benefit from continuing operations of $32,000 for the three months ended September 30, 2009, as compared to tax expense of $548,000 in the same period in 2008. The tax expense for the three months ended September 30, 2008 primarily consisted of certain non-deductible permanent differences, which did not recur in the three months ended September 30, 2009.

We did not record any revenues, operating results, or gains or losses from discontinued operations for the three months ended September 30, 2009. We recorded a loss from discontinued operations of $12,000 for the three months ended September 30, 2008, and the loss on the sale of discontinued operations was $13,000 for the three months ended September 30, 2008.

Net income for the three months ended September 30, 2009 was $1.8 million compared to a net loss of $9.9 million for the three months ended September 30, 2008. The increase in net income was primarily attributable to the items noted above.

Critical Accounting Policies and Estimates

The preparation of our financial statements requires that we make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and disclosure of contingent assets and liabilities. We base our estimates on historical experience and other assumptions that we believe to be reasonable under the circumstances. Actual results may differ from these estimates. Our critical accounting policies, estimates, and methodologies in 2009 are consistent with those discussed in our Annual Report on Form 10-K for the year ended December 31, 2008, except as discussed below.

Fair Value Measurements

We measure the fair value of financial assets and liabilities in accordance with Accounting Standards Codification ("ASC") 820, Fair Value Measurements and Disclosure, issued by the Financial Accounting Standards Board ("FASB"). ASC 820 defines fair value, establishes a framework for measuring fair value, and expands required disclosures about fair value measurements. ASC 820-10-20, Fair Value Measurements and Disclosure - Definitions, defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date.

We own two types of auction rate securities ("ARS"). The first type of ARS is collateralized by what was investment-grade corporate debt and prime-rated mortgage-backed debt when we purchased them, has a long-term maturity date, and is insured in the event of default by monoline insurance companies. We originally paid $21.4 million for our holdings of this type of ARS, and determined their fair values to be an aggregate $7.4 million at September 30, 2009 by using discounted cash flow models for both the ARS trust payments and the monoline insurer payments, weighted by the probabilities of trust default, the fair value of the collateral and secondary market information. Considerable judgment was used in weighting the variables for determining fair value. Those models relied upon certain unobservable inputs, including our estimate of the holding periods, ranging from 6 to 28 years for the ARS trusts and from 15 to 41 years for the monoline insurers, the annual discount rates applied to future cash flows, which was primarily based on the historical credit default swap rates for comparable ARS trust entities and monoline insurance companies, ranging from 2% to 18% in excess of the London Interbank Offered Rate ("LIBOR") for the ARS trusts and from 30% to 89% for the monoline insurers, and our estimate of the probabilities of ARS trust default, ranging from 0% to 50%. During the three months ended September 30, 2009, the trustee of an ARS that we own permanently suspended auctions of that ARS, and the interest rate paid until maturity was fixed a rate of 2.3%. We applied that 2.3% interest rate to all of the collateralized ARS that we hold, due to the probability that the auctions would be suspended for all collateralized ARS.

The second type of ARS has no maturity date and, in the event of default or liquidation of the collateral or ARS trust by the ARS issuer, we or the ARS trust are entitled to receive non-convertible preferred shares in the ARS issuer; ARS of that type are also known as auction rate preferred securities ("ARPS"). For the remaining ARPS which have a fair value above zero ($0), for which we originally paid $7.0 million, there was a single issuer, and we determined their fair values to be an aggregate $850,000 at September 30, 2009 by using discounted cash flow models for the ARPS trust payments, weighted by our estimated probability of trust default. The models relied upon certain unobservable inputs, including our estimate of the holding periods, which was 40 years, the annual discount rate applied to future cash flows, which was primarily based on the historical credit default swap rates for the ARPS issuer, ranging from 6% to 7% in excess of LIBOR, our estimate of the probabilities of trust default, which was 0%, and the recent sale of preferred shares which replaced certain of our ARPS, as discussed below. Considerable judgment was used in weighting the variables for determining fair value.

For additional information see Note 2: Fair Value Measurements of the Notes to our Unaudited Condensed Consolidated Financial Statements (Item 1 of Part I of this Report).

Accounting for Goodwill

ASC 350, Intangibles - Goodwill and Other, requires that goodwill and intangible assets with indefinite lives be tested for impairment on an annual basis and between annual tests in certain circumstances. On a quarterly basis, we assess whether business conditions, including material changes in the fair value of our outstanding common stock, indicate that our goodwill may not be recoverable.

During the three months ended March 31, 2009, our market capitalization declined to an amount lower than the book value of our stockholders' equity. This was a triggering event that required us to perform tests for impairment of our goodwill with a measurement date of March 31, 2009. We use a two-step process to test for goodwill impairment. The first step of the goodwill impairment test is a comparison of the fair value of our reporting unit or units to its or their respective carrying value. Our Company is deemed to be a single reporting unit for our impairment analysis. We determined the fair value of our reporting unit based on discounted projected future cash flows, which used a range of discount rates for estimated costs of capital for comparable companies and comparative market multiples. Based on the results of this goodwill impairment analysis, we concluded that the carrying amount of the goodwill did not exceed its fair value, and goodwill was not considered

to be impaired as of March 31, 2009 and the second step of the goodwill impairment test was not considered necessary. During the three months ended June 30, 2009 and September 30, 2009, there were no indicators of potential impairment of goodwill. In future periods, we will continue to evaluate our market capitalization and stockholders' equity, as well as other factors such as the business climate and business relationships, to determine if a triggering event has occurred.

Historical Results of Operations

For the three months ended September 30, 2009, our net income was $1.8 million. We have incurred net losses on an annual basis for all but three of the years since our inception. Additionally, we have incurred a net loss for the year to date and as of September 30, 2009, had an accumulated deficit of $1.0 billion.

Results of Operations for the Three and Nine months ended September 30, 2009 and 2008

Revenues. Revenues for the three and nine months ended September 30, 2009 and 2008 are presented below (amounts in thousands):

Three months ended Change Nine months ended Change September 30, from September 30, from 2009 2008 2008 2009 2008 2008 Revenues $ 54,356 $ 39,469 $ 14,887 $ 137,189 $ 119,979 $ 17,210

The increase in revenues for online search services for the three and nine months ended September 30, 2009 as compared to the three and nine months ended September 30, 2008 is primarily due to an increase in revenue from search results delivered through the Web properties of certain of our distribution partners partially offset by a decrease in revenues from search results delivered through our owned and operated properties. For the three and nine months ended September 30, 2009, revenues generated from search results delivered through our owned and operated properties were lower than during the three and nine months ended September 30, 2008 due to a decrease in the average fees per paid click that our customers share with us, partially offset by an increase in paid click volume on our owned and operated properties. The decrease in average fees per paid click was the result of a decrease in advertiser fees paid per click to our customers and an increase in the proportion of revenues derived from our marketing initiatives on our owned and operated properties. Average fees per paid click for revenues derived through our direct marketing initiatives historically have been lower than the average fees per paid click for other revenues generated on our owned and operated properties. During the three months ended September 30, 2009 and 2008, 77% and 61% of our revenues were generated through our search distribution partners' Web properties, respectively. During the nine months ended September 30, 2009 and 2008, 73% and 65% of our revenues were generated through our search distribution partners' Web properties, respectively.

Seasonality

Our search services are affected by seasonal fluctuations in Internet usage, which generally declines in the summer months.

Content and Distribution Expenses. Content and distribution expenses consist principally of costs related to revenue sharing arrangements with our content and distribution partners, as well as content and data licenses. Content and distribution expenses in total dollars (in thousands) and as a percent of total revenues for the three and nine months ended September 30, 2009 and 2008 are presented below:

                                          Three months ended          Change      Nine months ended          Change
                                             September 30,             from         September 30,             from
                                          2009           2008          2008       2009          2008          2008
Content and Distribution Expenses       $  34,016      $ 18,265      $ 15,751   $ 78,702      $ 58,119      $ 20,583
Percent of Revenues                          62.5 %        46.3 %                   57.4 %        48.4 %

The increase in search content and distribution expenses for the three and nine months ended September 30, 2009 as compared to the three and nine months ended September 30, 2008 is primarily due to an increase in the revenue generated through the Web properties of our distribution partners from search results delivered through those distribution partners and increases in our revenue sharing rates. We anticipate that our search content and distribution expenses will increase in absolute dollars if revenues increase through growth from existing arrangements with our search distribution partners or we add new search distribution partners. If search revenue generated through our distribution partners' Web properties increases at a greater rate than revenues generated through our own Web sites, content and distribution expenses as a percentage of revenue will increase. We expect that search revenue from searches conducted by end users on sites of our distribution partners will continue to be a significant share of our search revenues for the foreseeable future.

Systems and Network Operations Expenses. Systems and network operations expenses are associated with the delivery, maintenance and support of our services, data management and infrastructure, including personnel-related expenses, which include salaries, stock-based compensation expense, benefits, and other employee-related costs, costs for temporary help and contractors to augment our staffing, communication costs, equipment repair and maintenance, and professional service fees. Systems and network operations expenses in total dollars (in thousands) and as a percent of total revenues for the three and nine months ended September 30, 2009 and 2008 are presented below:

                                            Three months ended         Change         Nine months ended          Change
. . .