Blerp - post comments, photos, videos on any website, annotate the web with music, news, gossip, politics, share bookmarks, online forums, social bookmarking, discussion topics
http://www.blerp.com/browser/index

Annotate or discuss a webpage.

Online post it program.

Annotate web pages and see what others have said about them as well.

Tool to let you annotate webpages

Site for annotating websites - collaboratively (alternative to diigo?)