ASP.NET Caching, Micro-Caching, and Performance

http://www.eggheadcafe.com/tutorials/asp-net/2518777b-c584-4305-941a-1a2d1a4b857d/aspnet-caching-microcaching-and-performance.aspx

Caching is your friend. If you have to present data that comes out of a database, and you run a website that gets a lot of traffic and requests, especially if the data is "read only"  (which it almost always is), you can get - in most cases - vastly improved throughput by caching this data for as little as 1/2 of one second.