The reason Wikimedia has much more extensive statistics about its editors than about its visitors is the sheer volume of data processing that would be required to produce the latter.
Here is a list of web 2.0 tools and other educational technology tools that I have previewed and many of them used in the classroom. Eventually I will do a tutorial and highlight most of these but in the meantime for those who are up to just exploring and figuring them out yourselves, then have at it and enjoy.
Bibliography Makers/Generators