If you are on a VPS or dedicated server running asp.net, and you are having problems with your worker process taking up all your memory and crashing your machine. I have a solution.
I wrote a little tutorial on my blog

It will make your website run faster, use less memory, and less transfer.
A must read for anyone using asp.net.

W3WP.exe using too much memory and resources

I already posted this in the asp.net section, but I felt that this would be most helpful for people on the smaller 256 MB, and 512 MB VPS boxes were memory is extremely tight.