Packrati.us - Bookmark your Twitter links

Packrati is an online service for collecting and saving Twitter bookmarks.

They write about the Packrat on their homepage:

"We follow your twitter feed, and whenever a status you tweet or re-tweet contains URLs, we add them to your favorite bookmarking service: Delicious, Pinboard, Diigo, historious, Instapaper, Pocket (Read It Later), or your own Scuttle server. Optionally, bookmark URLs in @replies to you, and in tweets you mark as Favorites."