Diigo is a remarkable social bookmarking system that let's you mark up a page with highlights and sticky notes and share those notes with your research groups. In this article, Miquel Guhlin explains how Diigo can be used with the Thinkfinity archive of teaching resources to create a slide show oriented pathfinder.
Posted from Diigo. The rest of my favorite links are here. (Diigo also provides a nice automatic feed of bookmarks and annotations to this blog.. a very handy feature indeed. ~ Dennis