The “free” Metasploit Unleased course from Offensive Security has been…unleashed! The additional materials you can purchase have been held back a bit until the next stable version of Metasploit (v3.3), but the wiki portion is available to consume now.

I’d strongly suggest donating money or paying for the additional materials if you have the funds and desire. Even if it weren’t going to charity, the guys who make BackTrack and this training possible deserve the kickback.