Autodesk Labs is one of my favorite places to go. If you have never been there, or it’s been a long time, then go back. There are many projects there to take a look at.
The most recently added project is Project Snap. According to the Labs website, Project Snap is a “unified browse and search platform” for Autodesk products. Right now it is only working for AutoCAD 2010 and AutoCAD 2011. They have plans to eventually extend it Revit and Inventor. It might work on AutoCAD Verticals (Like Map, and Mechanical) but the site doesn’t say. I’ve downloaded it and will be trying it out.