This blog post from Peteris Krumins lists all the publicly available Introduction to Algorithms lectures from MIT, and links to his summary for each, so you can find out what it’s like before investing in over an hour of lecture. Very specific but very valuable stuff.
A running description of activity related to DragonFly BSD.
Do you know Rosetta Code?
http://rosettacode.org/wiki/Main_Page
It’s very nice if you want to learn an algorithm by looking at a programming language you already are familiar with.