Check out Hot Sauces.
And, if you can handle the heat... You can also follow Hot Sauces on Twitter.
You gotta love a chili fan site with the following disclaimer:
Disclaimer: I, Shane Jones, will not be held responsible for you being in pain from some of these sauces, I went through the pain too at some point in time. It just seems that now I have built up an immunity to hot sauces and crazy chillis.
Pass the Cholula, please...