Excellent Series on Analyzing PDF Malware

This is a great multi-part series from Spider Labs covering lots of tools and techniques for examining suspicious (or just plain malicious) PDF files. Honestly, the flood of malicious PDF tools seems to have slowed down, but eventually everything old is new again, right?

Analyzing PDF Malware - Part 1 - SpiderLabs Anterior:

OllyDbg cheat sheet

Excellent cheat sheet for OllyDbg; this one features more commands than most I've seen:
http://www.dc214.org/notes/rev_eng/Docs/OllyDbg%20Shortcuts.pdf

Or you could just go to the source:
http://www.ollydbg.de/quickst.htm