Rod, over at Rod.net has created a custom google search that will narrow down the information returned from google when you're only interested in Revit API (Application Programming Interface.)
Anyone looking for that kind of info should try it @ Revit API Search Engine
From Rod's site:
"Searches through Revit API information sources, predominantly blogs. Email me at rodhowarth257 at gmail (dot)com (sic) with any suggestions! "
Folks like this helps us all. Thanks ROD!!