Echo:

I noticed this update from an Autodesk blog (originally posted on 10/31/11), and thought I'd echo it here - it's a pretty decent list of sustainability tools and general productivity tools available for Revit... and it doesn't hurt that our IMAGINiT Utilities for Revit are in the list. :)

http://bimapps.typepad.com/bim-apps/2011/10/revit-sustainability-design-and-general-productivity-tools.html

Enjoy!