In talking a bit more about the concurrency issue I mentioned yesterday, I only alluded about one .NET threading concurrency library, Microsoft's forthcoming PLINQ. Go figure that that same day Miguel de Icaza would link to another group who's been working on this problem for years (and whom I should have remembered sooner).
MindTouch works on web-based enterprise collaboration tools built on .NET, but they've also developed a threading and concurrency model that, according to the Mindtouch presentation at the recent Monospace conference, vastly outperforms the existing thread pools in .NET. I've got a project I'm doing design work on that could benefit greatly from strong thread pooling, so I'm looking forward to downloading the Core version of MindTouch, and seeing what I can do with it.