I just discovered this great article on codeproject.com for optimizing ASP.NET 2.0 website performance:

http://www.codeproject.com/KB/aspnet/10ASPNetPerformance.aspx by Omar Al Zabir titled 10 ASP.NET Performance and Scalability Secrets.

I wanted to pin it on my blog so this article doesn't get missed. There is some good practical information here on how to tweak your ASP.NET configuration for improved performance.