I think all of the libraries I showed at #FOTB are linked here. Ping me on twitter if I missed anything (@gskinner).

Eventually this will all be placed in google code, with proper write ups.
GTween
GTween information
PerformanceTest
PerformanceTest information and download

FramerateThrottler
FramerateThrottler information and download
Chunker
Simple example of a chunking class
Janitor
Janitor class