Two of my favourite Web2.0 applications are Delicious and Twitter. I use Delicious to bookmark,tag,save and share websites (http://delicious.com/geniaus) and Twitter to share snippets of news,info and web links (http://twitter.com/geniaus).
A new tool, Packrati.us, promises to "follow your twitter feed, and whenever one of your tweets contains URLs, we add them to your delicious.com bookmarks. Optionally, bookmark URLs in @replies to you."
I am going to try out this tool and hope that it adds some valuable links that I may otherwise have missed to my Delicious account.