Alan,
You can check out Bob Roll's daily dispatch from the Tour at
www.olntv.com.
Here are some other links:
T-Mobile:
http://www.t-mobile-team.com
Discovery:
http://team.discovery.com
Floyd Landis:
http://www.floydlandis.com/blog/
George Hincapie:
http://www.georgehincapie.com/news.php
Jan Ullrich:
http://www.janullrich.de/
Levi Leipheimer:
http://www.levileipheimer.net/
Ivan Basso:
http://www.ivanbasso.it/
I am smiling because you say you are limited to sites you can get to at work. I currently have a six month sabbatical after 20 years in one place in the Information Technology Field. I am going to be immersed in Tour coverage!
Franklin