I am still learning how to use Diigo. But this is unbelievable stuff! When did it become available? I had no idea that this was available to everybody. So far, I learned the following features, and I liked them all:

1. To bookmark any page online and save them with Diigo.  This is convenient if I like to take notes on pages, like active reading with a pencil on my book. I can log on any computer and my bookmarked pages are saved.

2. Sharing Links with sticky note and save in into a group folder.

3. Notating Web pages seems pretty cool: After I installed the Diigo toolbar, there were many yellow sticky notes!

4. Blog This seems a great way to link to a blog site.