Do you Diigo?

Do you ever wonder what happened to that article that you found on Twitter a month ago?  Me, too...  That is until I found Diigo.  Diigo is a free bookmarking tool that you and your students can use to bookmark and annotate articles, digital documents and virtually anything that you find on the web.  The cool thing about Diigo is that you can bookmark links into categories and tag keywords to the article.  Don't lose that amazing article.  Diigo it!  I also included this tutorial video from lynda.com