del.icio.us Director: del.icio.us has been improving its features for creating and tagging bookmarks, but it hasn't done much to make it easier to find those bookmarks later. Director pretty much gives me everything that I would expect in terms of browsing and searching my bookmarks.

Scrapbook for Firefox: makes it super easy to collect and compose images and text you find on Web pages. Normally I have to keep track of dozens of tabs when I researching a topic or holding onto articles. Now I can just save what I want into an easy-to-manage pane.