If you are using social networks, you are also creating favorites. On Facebook you 'like', on Twitter and Google Reader you 'star', on Delicious and Pinboard you 'bookmark' and so on.
Find Favorites. Instead of spreading your favorites across different networks, use Favs to sync them to your Mac. Don't waste any more time on searching for your favorite content - Favs has a powerful search feature build right into the application that makes finding what you like a breeze.
Packrati.us now supports Historious, Instapaper, Pinboard.in, and Diigo accounts.This site provides a simple bookmarking service. We follow your twitter feed, and whenever a status you tweet or re-tweet contains URLs, we add them to your delicious.com bookmarks. Optionally, bookmark URLs in @replies to you, and in tweets you mark as Favorites.\n