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Yahoo! is the world's #1 content portal and #3 search engine in terms of popularity (traffic and volume).

Microsoft Takeover Bid

In 2008 Yahoo! successfully fought off an aggressive takeover bid from both Microsoft[1] and billionaire investor Carl Icahn.[2][3][4]

It was only a matter of time until the software giant got their way though[5][6], as Bing became the official search engine powering Yahoo! search results as of August, 2010[7] when the transition completed[8], after both companies had battled legal regulators since its announcement in 2009, primarily over the lack of competition in the Search Engine market that the 10-year deal was likely to introduce[9].

Subsequently, many of Yahoo!'s most innovative search and Information Retrieval services were either shut down and migrated to YQL, deprecated for eventual shutdown, or decommissioned entirely[10]. As a result, many talented Yahoo! developers either left the company on news of the Microsoft bid[11], in advance of the Bing integration[12] or were simply let go[13][14][15][16][17], leaving several leading analysts and industry insiders to wonder what happened to Yahoo![18]. The company stated that it intended to refocus its efforts on display advertising, and strategic media/content partnerships[19]; and though popular services like SearchMonkey died, other frequently-used services such as BOSS were put on a paying-subscriber only meter[20].

In somewhat hopeful news, Yahoo! announced in 2011 that it might be re-thinking its position in Search and its Microsoft partnership[21].


Yahoo! Search

Without a doubt, Search is the most important (and fleeting) technological capability of Yahoo! It is the one service that touches all aspects of the Yahoo! brand in one way or another.

Yahoo! Clues

Yahoo! Clues (analyze hot/trending search terms):

Yahoo! Buzz

Yahoo! Video Search

Yahoo!'s video search is one of the most useful of the major search engines for retrieving actual original source files for videos, as opposed to a protected format, or embed code for a Flash-based web video.

Yahoo! Image Search

Yahoo! Image Search performs well and has a complete set of APIs for providing photo searching capabilities within your own site.

Yahoo! YQL

Yahoo! Query Language (YQL) is a Yahoo!-specific query language for accessing information on third party sites via sandboxed (and thus non-browser-security-protocol breaching) cross-domain AJAX requests (mostly Yahoo! web properties such as Yahoo! News, Yahoo! Answers, Flickr, Upcoming, Shopping, Search, etc... but recently they've also added/exposed the ability to make requests to scrape data from all types of sites via the Yahoo! web crawler).

Yahoo! Video

Yahoo! LIVE

In February, 2008, Yahoo! introduced Yahoo! LIVE, a service for broadcasting live video over the web via webcam.

Yahoo! TV


Primetime in No Time


The best of the Internet on your TV (TV Widgets from Yahoo!), Connected TV is Yahoo!'s newest service, complete with an API and Developer platform. Their widget goes "Tap into the mass market.Build a Yahoo! TV Widget".

Yahoo! Maps

Yahoo! Maps is an attempt to keep up with Google Maps and MSN Maps.

Yahoo! Mail

In 1997, Yahoo! followed suite to Microsoft's Hotmail acquisition and aggressive push with Microsoft Outlook and started their own thin webmail client (long before Google's 2004 beta and 2005 full launch of GMAIL). Yahoo! has since acquired Four11 and OddPost to add Outlook-like interactive Drag & Drop features and AJAX loading for faster mail access as well as other optimizations. wikipedia: Yahoo Mail

Yahoo! Finance

Yahoo! Fantasy Sports

Yahoo! Mobile

Yahoo! Mobile is the mobile division of Yahoo!'s related brands and web services, with a particular focus on web search and web mail.

Yahoo! Shopping

Yahoo! Messenger

Yahoo! PlaceMaker

Weather API

Internet Properties

Yahoo! currently owns a large number of complimentary and/or previously competing internet properties, spanning a broad spectrum of services and/or functionalities, the majority of which were acquired via a buyout, merger or other acquisition.


Flickr is quickly becoming the world's photo sharing hub.


Jumpcut is a Yahoo! acquisition that has gone mostly under the radar, as Jumpcut has all but ceased to create any further innovations since their initial "online video editing suite". (closed in late 2008)

Delicious is one of Yahoo!'s flagship acquisitions and represents their foray into Social Bookmarking.

Yahoo! Overture

Overture was certainly one of the largest acquisitions of Yahoo! to date. With its focus on search marketing and display ads, Overture has been integrated with mixed reviews by search marketers and advertisers.

Open Source Projects


Yahoo! Pipes is a "Social Media Search Engine" that searches for all media (images, animations, videos, audio files) to aggregate the occurrences of a brand or particular search term over the most popular media sites on the web. The project attempts to create a traditional Database Management system, however as Alex Iskold at ReadWriteWeb reminds us "unlike in Relational Databases, the data (on the web) is neither structured nor clean".[24]


BOSS (Build your Own Search Service) is Yahoo!'s open search web services platform. The goal of BOSS is simple: to foster innovation in the search industry. Developers, start-ups, and large Internet companies can use BOSS to build and launch web-scale search products that utilize the entire Yahoo! Search index.


SearchMonkey is Yahoo! Search's new open platform for enabling "enhanced" search results. Using SearchMonkey, developers and site owners can use structured data to make Yahoo! Search results more useful and visually appealing, and drive more relevant traffic to their sites.


Search Direct


The Yahoo! User Interface (YUI) Library is a set of utilities and controls, written in JavaScript, for building richly interactive web applications using techniques such as DOM scripting, DHTML and AJAX. The YUI Library also includes several core CSS resources. All components in the YUI Library have been released as open source under a BSD license and are free for all uses.

Yahoo Hacks

Yahoo Hacks are shortcuts, tips and tricks for getting more out of the Yahoo! Search services and various Web Services than is possible by a simple keyword search.



(Formerly the Yahoo! Publisher Network)

Yahoo! Advertising

Yahoo! Search Marketing


Yahoo! Music API

The Yahoo! Music API gives developers access to the Yahoo! Music catalog of artists, albums, tracks, videos, ratings and more. It provides numerous ways to browse the catalog: through charts, search, similarities, genres, artists, and user recommendations and ratings. Adding content to your site becomes simple when using our API and video player.[30]

Yahoo Media Player


External Links


  1. WOW. Microsoft Offers $44.6 Billion To Acquire Yahoo:
  2. Icahn launches attempt at Yahoo coup:
  3. Dear Yahoo- You're Fired:
  4. Sincerely Yours, Carl:
  5. Yahoo Gives Up, Turns Search Over to Bing:
  6. Yahoo Gives In to Microsoft, Gives Up on Search (still retains Ad rights):
  7. Official - Yahoo’s Results Now Come From Bing:
  9. It's official - Microsoft-Yahoo ink 10-year search pact; Regulator scrum begins:
  10. Yahoo! Developer Network announcement - Important API Updates and Changes (discontinued/deprecated Yahoo! Web Services):
  11. Leaving Yahoo! (2008, pre-MS but seeing the writing on the wall):
  12. PHP Founder Rasmus Lerdorf Leaves Yahoo:
  13. Yahoo to Proceed with Mass Layoffs:
  14. Yahoo Layoffs Happening Now:
  15. Another Round Of Layoffs At Yahoo, Search Team Gets Hit:
  16. Yahoo Continues Circling the Drain: Big Layoffs Likely:
  17. Yahoo Reports More Layoffs, Q4 Revenue down:
  18. What Happened to Yahoo:
  19. Yahoo Gives Up, Turns Search Over to Bing:
  20. As Bing Takes Over Yahoo Search, SearchMonkey Dies, BOSS Is No Longer Free, But Site Explorer Still Works:
  21. Yahoo and Microsoft - is the honeymoon over?:
  22. iStocks Widget: International Quotes:
  23. Example YQL query to Yahoo! Fantasy Sports in YQL console:*%20from%20fantasysports.players%20where%20game_key%3D%22238%22%20and%20count%3D10
  24. Yahoo! Pipes and The Web As Database:
  25. Yahoo! to open up Search:
  26. Yahoo! Search Direct offers real-time ‘as you type’ search updates:
  27. Yahoo! introduces Search Direct:
  28. Yahoo's Search Direct -- Evidence that its internal cloud starting to pay off:
  29. Yahoo Copies Google with Search Results as You Type:
  30. Introducing the Yahoo Music API:

See Also

Google | Bing | Search Engine