All great but here are five (5) to illustrate the range of what awaits:
Connecting Data Science to business value, Josh Hemann.
GPU and Python, Andreas Klöckner, Ph.D.
Network X and Gephi, Gilad Lotan.
NLTK and Text Processing, Andrew Montalenti.
Wikipedia Indexing And Analysis, Didier Deshommes.
Forty-seven (47) videos in all so my list is missing forty-two (42) other great ones!
Which ones are your favorites?