I needed to find a way that two applications can use the same cache, and after some quick research it seems that we will need a distributed cache to achieve this. Further Googling turns up a number of solutions, NCache, SharedCache, Velocity, memcached. This cache will be used for caching webpages in a Microsoft Enviroment using Asp.Net 3.5.
So my question is what experiences do you have with these, or other, technologies.
We have been using Memcached for some time now and it works like a charm. It is really stable and the overall performance is also pretty good.
You can make use of the "Memcached Providers" project at codeplex.com to easily integrate it with .net.
Depending on the solution you require a low-tech option might be to persist the results/data to a network share.
Then have each machine hold a cached version (perhaps use the ASP.NET cache or Enterprise Library) of the data with a corresponding cache dependency.
To answer your question I have heard excellent things about NCache and Memcached.