How Do You Use Diigo Instructionally?

I asked a couple of weeks ago about Google Forms and the response was so great, I figured why not ask about Diigo?

Do you use Diigo instructionally? If so, I'd appreciate you sharing that information via this Google Form, it will only take a couple of minutes at most. Feel free to share a description of how you're using it, including any links to blog posts, wikis, etc. that demonstrate how you're using it. You can also optionally include your name and email address if you don't mind being contacted by folks having additional questions (I will be sharing the results on the web, so please keep that in mind before clicking submit).

You can, of course, also leave information in the comments to this post so that everyone can see it immediately as well (although it would be great if you would also add them to the Google Form so I have them in one place). Thanks in advance for anything you're willing to share.

Update from the comments: We are doing a show this Saturday on Classroom 2.0 LIVE about the new features on Diigo v. 4 with Maggie Tsai, Miguel Guhlin and Russ Goerend. The focus will be on using Diigo instructionally and I'm sure there will be lots of sharing in the chat room and via the mic in the Elluminate session. We will announce your survey during the session and invite people to contribute to it. We'd love to have you and your readers join us to participate in the conversation/presentation. Saturday, October 31, 9:00am PDT, http://live.classroom20.com for additional information and login link.