Yahoo! Announces New Web Services on Yahoo! Developer Network; Yahoo! Developer Network Debuts Application Gallery to Help Users Discover Innovative Applications Built on the Yahoo! Platform

"Developers play an important role in helping to enhance Yahoo!'svast network of services," said Ash Patel, chief product officer,Yahoo! Inc. "These new APIs along with new tools available on theDeveloper Network will continue to foster an environment of creativityand innovation that ultimately benefits Yahoo!'s users."

Patel and Jeffrey McManus, director of the Yahoo! DeveloperNetwork, will speak this afternoon on "Building a ParticipationPlatform: Yahoo! Web Services Past, Present, and Future" at theO'Reilly Emerging Technology Conference in San Diego, California.

As part of today's presentation, Yahoo! will announce that it isplanning to make the following APIs available on the DeveloperNetwork:

Yahoo! Photos API: In the coming months, a new Yahoo! Photos APIto allow developers to build custom applications on top of the world'slargest photo sharing service(a). By opening up its API, Yahoo! Photosencourages the developer community and photo product providers tocreate value-added features and products for Yahoo! Photos' 34 millionusers worldwide(a).

Yahoo! Shopping APIs: Based on developer feedback, Yahoo! Shoppinghas enhanced its APIs with a new browse navigation feature that helpsconsumers quickly narrow their product search by providing the userwith a menu of sub-categories and product attributes to further refinetheir search results. A browse shopping experience with category andattribute based refinement can also be built, allowing users to drilldown and obtain product results meeting their preferred productcriteria.

Yahoo! Calendar API: The Yahoo! Calendar API is intended to enabledevelopers to write applications that make it easier for users toaccess their Yahoo! Calendar from other sites on the Web, enhancingthe experience for millions of Yahoo! Calendar users. Yahoo! plans tomake this new API available in the coming months.

MyWeb 2.0 API: This enhanced API provides the ability to read fromas well as write to MyWeb 2.0 and is intended to enable information tomove seamlessly between MyWeb and other applications or devices.Yahoo! plans to make this new MyWeb 2.0 API available in the comingmonths.

Additionally, the Yahoo! Developer Network is launching anApplication Gallery (available at http://gallery.yahoo.com), aone-stop site for consumers to discover applications that developershave built using Yahoo! technology. The Application Gallery willprovide a centralized location for established and new applicationsacross Yahoo! properties such as Maps, Flickr, Yahoo! Music Engine andSearch.

"We are committed to providing developers with an open,easy-to-use platform to build applications and use Yahoo! technologyin innovative ways," said McManus. "By offering more Web services thanany other Web company, we give developers the flexibility and choiceto customize our technology and contribute to new on and offlineexperiences for our users."

The Yahoo! Developer Network helps developers build innovativeapplications using Yahoo! technology. In addition to providing openWeb services, the Yahoo! Developer Network provides developers withaccess to documentation, reference guides, code examples, and groupsfor each Yahoo! property available on the Yahoo Developer Network.Yahoo! properties featured on the Yahoo! Developer Network includedel.ico.us, Flickr, Yahoo! Maps, Yahoo! Music, Yahoo! Search, Yahoo!Search Marketing, Yahoo! Shopping, Upcoming.org and Yahoo! Widgets.

About Yahoo!

Yahoo! Inc. is a leading global Internet brand and one of the mosttrafficked Internet destinations worldwide. Yahoo! seeks to provideonline products and services essential to users' lives, and offers afull range of tools and marketing solutions for businesses to connectwith Internet users around the world. Yahoo! is headquartered inSunnyvale, California.

(a) comScore Media Metrics, Jan. 2006

This press release contains forward-looking statements involvingrisks and uncertainties concerning Yahoo!'s introduction of the newAPIs and Application Gallery as well as Yahoo!'s strategic andoperational plans. Actual results may differ materially from theresults predicted due to a number of risks and uncertainties. Thepotential risks and uncertainties include, among others, delays indevelopment and lack of acceptance by developers and users. Moreinformation about potential factors that could impact Yahoo!'sbusiness and financial results is included under the captions, "RiskFactors" and "Management's Discussion and Analysis of FinancialCondition and Results of Operations," in Yahoo!'s Annual Report onForm 10-K for the fiscal year ended December 31, 2005, which is onfile with the U.S. Securities and Exchange Commission (the "SEC") andavailable at the SEC's website at www.sec.gov.

Yahoo!, Flickr, del.icio.us, Upcoming.org and the Yahoo! logos aretrademarks and/or registered trademarks of Yahoo! Inc.

All other names are trademarks and/or registered trademarks oftheir respective owners.