Diigo

Diigo is by the far, the neatest browser add on the I have ever used.  It works great with Mozilla Firefox.  It is very useful to be able to book mark information on here and then be able to highlight items so that I can share what I feel is important with others.  I can see where Diigo is going to save me a lot of time in the future.  Diigo matches ISTE standard three by providing a quality method of collaboration and communication between teachers and students.