The document reviews and evaluates various collaborative tools for blogging, RSS reading, and sharing content across platforms. It identifies Facebook, Instagram, LiveJournal, SlideShare, Twitter, Last.fm, Posterous, and LinkedIn as the most useful tools. NewsGator, LiveJournal, and Delicious are called out as the best overall tools. For Mac users, the document recommends Xjournal, TweetDeck, NetNewsWire, Last.fm Scrobbling, and iPhoto.