The videos from PyData NYC 2012 are now online. There are about 40 videos, most of which are 30-45 minutes long with some lightening talks thrown in. They cover everything from network analysis, literate programming with iPython Notebook, R/Hadoop/Pig integration, plotting with matplotlib, and much more.
Infochimps just put out a white paper using a sub shop metaphor for describing the difference between batch and stream data processing. Also, their phone number is apparently 855-DATA-FUN.