Ask.comSearch

Ask.com is laying off roughly 130 engineers and giving up on its own all-purpose search technology. It plans to go back to its roots of answering simple questions instead of indexing everything on the Web. Its exit leaves only two general search providers: Google and Microsoft.

Internet giant Google grew its U.S. market share by a full percentage point to 71.6 percent in November, according to Web traffic tracker Hitwise. See how Google's gain impacted Bing and Yahoo.