Two Good ones I found (Both free to use) are:
The Web Blocker (http://download.cnet.com/The-Web-Blocker/3000-2162_4-10920621.html)
Parents, librarians, business owners, and anyone concerned about inappropriate and adult content on the Internet may want to check out The Web Blocker from Webstart Studios. TWB is freeware that lets you filter and block inappropriate content, monitor Internet use, and build customized Block Lists for various users, situations, and content.
BlackBox Security Monitor Express (http://download.cnet.com/BlackBox-Security-Monitor-Express/3000-2162_4-75328923.html)
Scheming teenagers, wayward spouses, and other sneaky computer users sometimes inspire someone to keep an eye on them. BlackBox Security Monitor Express can do this task for you, keeping track of the Web sites, keywords, and text that are entered by each computer user. Whether or not you should be snooping is something we'll refrain from weighing in on; all we'll say is that this program works.
I hope it helps. Good Luck! :)