How to keep an object in memory for life of web app?

I want to try and implement my own caching framework in ASP.NET, not using built in caching. As a simple example, is there anyway to place some arbitrary object in memory (a single object, or maybe a List <of T>), and have it available to anyone accessing a web page on the site at any time?

1) static variable
2) Cache object
3) Application variable

Hey,

There is quite a lengthy discussion between Static and Application variables here:

http://lanitdev.wordpress.com/2009/0...es-in-asp-net/

That you might find of interest. And there is another discussion here:

http://weblogs.asp.net/plip/archive/.../01/40526.aspx

Hope that helps!!

Gary