Diigo is the #1 extension for annotating, archiving and bookmarking webpages. With this easy-to-use research tool, you can 1. Bookmark links to archive webpages or to read later 2. Permanently attach Highlights & Stickies to a webpage as a reminder 3. Share pages with annotation via Twitter, Facebook, Google Buzz 4. Save online to allow access anywhere, via iPhone, iPad, Android, etc. 5. Create gr