Plaxo Unveils Next-Generation Social Network

Pulse pioneers the powerful concept of "people feeds," which is the notion of being subscribed to the people in your address book, and then automatically receiving the content they choose to share with you from any of the various sites they use. The list of sites from which Pulse is aggregating such people feeds now includes: Amazon.com, AOL Pictures, Del.icio.us, Digg, Flickr, Jaiku, Last.fm, LiveJournal, MySpace, Picasa, Pownce, Smugmug, Tumblr, Twitter, Webshots, Windows Live Spaces, Xanga, Yahoo! 360, Yelp, and YouTube. Many more are on the way, thanks to user-centric sharing policies and open standards for exchange of data, including RSS, OpenID and microformats.

Interesting!