A friend of mine from the  Wilson School District told me about a site called Diigo.   It is a social bookmarking site like delicious (if you know what that is) but it allows many other features such as highlighting webpages, and adding sticky notes that are saved on pages that you visit.   This has some real possibilities for student and teacher research.   Haven’t played with it too much yet, but plan on it in the future.   Try it out and leave a comment on the blog.  Here’s the link:  www.diigo.com.