<a href="http://professorgarfield.com/" target="_blank">Professor Garfield</a>
Lots and lots of activities.  Make sure to have students use headphones!<a href="http://professorgarfield.com/" target="_blank"></a>

<a href="http://ecuip.lib.uchicago.edu/" target="_blank">eCUIP: The Digital Library</a>

<a href="http://cwd.uchicago.edu/index.htm" target="_blank">chicago web docent</a>