Super hot technology these days. Not sure what the difference is from ealier iterations of clustering projects like beowulf, PVM, and mosix. I played with all of these things a few years back. I am interested in seeing what the difference is from that and "grid computing." I'll be taking a look in my "free" time. Anyway heres a link to a .Net implementation for developing grid computing applications. Also has a nice intro to grid computing in the documentation.

http://www.alchemi.net/index.html

One other side note: How is this different from some of the agent frameworks (like JADE or ADK) too????