"If Facebook allowed users to differentiate between their professional and social relationships and control what parts of their profile are visible based on relationship type, it" could be the end of LinkedIn...
Reviews social networking site aggregators (profile aggregators): Spokeo, Hypeit, Profilefly, ProfileLinker, and Profilactic. Commenters discuss portals: Netvibes, Pageflakes, iGoogle...and lifestreaming, social streaming, or streaming presence sites li