IE security testing sites

Kent Sharkey links to this Browser Security Test by Scanit, which allows you to run about 40 tests for vulnerabilities of your browser (IE or Mozilla or other). It doesn't look too current - last update is Jan 05. Here is the list of vulnerabilities tested (currently 38).

And someone in a comment, linked to this one
http://www.jasons-toolbox.com/BrowserSecurity/cookies-third-party.asp