Python
I maintain a list of common mistakes that programmers new to Python make: Anti-Patterns in Python Coding
In Spring 2011 and 2012, I'm teaching one of the CIS department's "mini-courses," Python Programming (CIS 192).
In the past I've also led some informal groups for learning Python. The slides from those groups can be found on my Python for Lanugage Researchers Site.
Tools
I'm working to release the code and data I've used for papers. E-mail me if you need anything in particular in the meantime.
Tutorials
Some materials for a tutorial on classification.