What are some database caching options for .Net?

using Microsoft.Practices.EnterpriseLibrary.Caching;
    //Later
    CacheManager cache= CacheFactory.GetCacheManager();
    cache.Add("dataKey", "Yourdata")

using System.Web.Caching;
using System.Web;

public sealed class CacheProvider
{
    private CacheProvider(){};

    public static GetInstance()
    {
            return HttpRuntime.Cache;
    }
}