Facebook has sponsored search for apps but not for the general search engine.

FORBES: Live: Facebook Launches Graph Search, A Social Search Engine, With Bing Partnership

To address EU concerns over Google's "scraping" of user reviews and other content from rival sites, the company pledged to give content providers the right to opt out of its specialist search services -- such as Google News -- without disappearing from its general search engine.

CNN: Google in peace deal with Brussels

But he emphasized that Ask would remain a general-purpose search engine with its own algorithm, not a niche site.

FORBES: Magazine Article

He hired half a dozen of his colleagues to noodle ideas, the most promising of which was a general-purpose Internet search engine.

FORBES: The Finder

The elements of the bill authorizing the Attorney General to serve court orders on search engine and payment processers are a powerful deterrent to rogue sites.

FORBES: The Case For The PROTECT IP Act And DNS Filtering

The Texas state attorney general's office said its parallel probe of Google's search-engine practices, which includes other states such as Ohio, would continue.

WSJ: Behind Google's Antitrust Escape