Infrasonik is a Canadian company which produces sample packs for electronic musicians. They just posted an outstanding video on YouTube of their top 10 Ableton Live shortcuts. This is one of the best Ableton Live tutorial videos out there. I knew most of the shortcuts but this was a nice reminder of a few forgotten tricks. If you use Live I am sure you will learn something.
On the Wire to the Ear YouTube channel I have created an Ableton Tips & Tricks Playlist. So far I put five videos in it and will be added more as a come across videos I think fit.