Photo: Corbis

U.S. 2010 digital revenue: $4.4 billion

Snapshot: Yahoo’s sites get a staggering 630 million unique visitors a month, according to comScore—but that number flatlined in 2010, as Facebook took off. Over the years, Yahoo has struggled to build a social networking presence of its own and recently has moved to integrate Twitter and Facebook across its properties instead.

Key digital move in 2010: For Yahoo, 2010 was yet another year of pruning: The company outsourced or sold several units that did not fit well into either communications or content. Yahoo Personals was outsourced to IAC’s Match.com; the company’s real-estate listings were handed off to Zillow; Zimbra was sold to VMWare; and HotJobs was sold to Monster Worldwide. The result was a company that was smaller sales-wise but one that executives insisted was positioned for growth.

How we generated our estimate: Yahoo reported “Americas” revenue of $4.4 billion in 2010, down from $4.9 billion in 2009. The vast majority of that total comes from the U.S.