While there are many browsers out there that do this already like the superb Firefox and My-IE I wanted to link to a really cool article by John Kennedy (unfortunate name I know) on how to build your own version based on top of the IE rendering component available in windows.  Partly because it's just quite cool, shows off C# express, and shows how you can write a pretty complete application with just a few lines of code, but also because John works right down the hall from me and he deserves some props for this article. 

Of course, I hate tabs and the google toolbar already gets me this functionality but it's still sweet John :-)

Tabs... shudder!!