I've just created a project on CodePlex for a set of Visual Studio 2008 project and item templates to aid in the development of Windows PowerShell Cmdlets. Check them out here!

I'm planning on refining these templates based upon user feedback and will add support for Visual Basic in future. The templates are released under Apache License 2.0 and a Subversion repository has been set up so please feel free to add some feedback or contribute.

Image credit: MSMVPS.com

There are many open source projects that have hit the big time such as FireFox, Apache and of course Linux. However for each of the big names there's hundreds of smaller projects out there delivering quility applications that you could possibly make use of.

So how do you find these projects? Well take a look at http://www.osalt.com. This site allows you to search based on the name of a comercial product and will list the open source alternatives.
 
Image credit: Open Source Initiative (c)