"Diigo is a powerful information capturing, storing, recalling and sharing tool. Here are just a few of the possibilities with Diigo:
Save important websites and access them on any computer.
- Categorize websites by titles, notes, keyword tags, lists and groups.
- Search through bookmarks to quickly find desired information.
- Save a screenshot of a website and see how it has changed over time.
- Annotate websites with highlighting or virtual "sticky notes."
- View any annotations made by others on any website visited.
- Share websites with groups or the entire Diigo social network.
- Comment on the bookmarks of others or solicit comments to your shared bookmarks."
Via Karen Bonanno