Where the semantic web stumbled, linked data will succeed

While OpenGraph is incomplete and imperfect, it is immediately usable and sympathetic with extant approaches.

Read the full post:
http://radar.oreilly.com/2010/11/semantic-web-linked-data.html

Linked Data - Connect Distributed Data across the Web
http://linkeddata.org/

From Wikipedia: http://en.wikipedia.org/wiki/Facebook_Platform


The Open Graph protocol enables developers to integrate their pages into the social graph. These pages gain the functionality of other graph objects including profile links and stream updates for connected users.