GRID computing, in the sense of distributed computing with a focus on large-scale resource sharing and high performance computing, is starting to emerge as a viable direction for several computing problems (you can also see What's the grid  )

Below are links to several  projects that lets you create Grids using the .NET platform

• MS.NETGrid -   - An open source .NET implementation of  Open Grid Services Architecture and Infrastructure
• OGSI.NET - Another open source implementation of the same standard
• Alchemi.NET - Yet another open-source project - this time a part of the GridBus project
• BFC - Base one Foundation Class - a commercial GRID implementation

Happy Gridding