BOSTON ( MainStreet) -- It must feel pretty good to be Facebook. It has some 700 million users worldwide, out-clicks the rest of the Web, including Google ( GOOG) -- Google -- and buzz has even started about using Facebook as a search engine.But there remain skeptics. Some might point to MySpace, since in 2007 an estimated one in five Americans used the site, or even to Friendster, once 100 million-strong and now with about 1.5 million users since rebranding as a gaming site (and expunging all older user profiles and content along the way).
|Facebook ailing and Friendster going strong? It could happen, experts say. Even one-time giants such as AOL and MySpace struggle now, while niche social media is growing.|