![](http://1.bp.blogspot.com/_WbhaaJXCTis/SCHsQ-r-w-I/AAAAAAAAAFs/jBJBnbe4TGw/s400/seek.jpg)
Go to http://seek.autodesk.com/. You can search by keyword, browse by CSI format, and filter it down by manufacturer. It appears to pull from multiple websites. It is a one stop shop for all your content searches.
There is also a built in search line inside of the Revit 2009 products that will launch this site.
![](http://2.bp.blogspot.com/_WbhaaJXCTis/SCHs6Or-w_I/AAAAAAAAAF0/CtS3SP4Z-cI/s400/seek+-+revit.jpg)