Postit

From Aumega Networks:

Postit is a Peer-to-Peer bookmarking system. Postit is very similar to del.icio.us and in addition, it enables conversations around posts. To use the Postit extension, you need to download and install the Indus Live SDK (available at http://www.aumeganetworks.com) which provides access to the P2P network and the Postit application (available at http://www.aumeganetworks.com) which can be installed using the Indus Live toolbar.

Postit currently features abilities to mark-and-post any web content, bookmark pages, add contacts, share and reply to posts, editing and organization of posts. Current plans include adding tags, public posts and search, post to blogs, feeds of tagged posts and import/export of posts. This version is the first release on CNET Download.com.