To call Diigo just a bookmark organizer is like calling Ella just a singer. But the truth is that your first and most obvious value will come from Diigo’s ability to store and search out your lost bookmarks like no other free program available. You can also highlight and file short sentences within a URL without saving the entire site. Plus you can search text as well as tags and easily forward your best links on to your friends. If you want additional layers of social networking, note taking, and added research ability, this tool satisfies. But you should plan on a gradual ramp up to proficiency. In order to take full advantage of Diigo, it will take some effort to make it sing for you…but in the meantime, it can sure hum.