Offensive Security has officially released the free version of their online training course for Metasploit!! The best part about it: as Metasploit evolves, so will this training/documentation! Since MSF evolves on an almost-weekly basis, they definitelyhave their work cut out for them! After perusing the site a little bit, I have to say that this training is very thorough and will help the folks new to MSF and even the more experienced folk may learn a thing or ten.
The current course is being offered as donation-only. So, if you take the course and you like what you learned – make a donation to help a great cause! There’s going to be a video/PDF version of this as well in the future, but it’s currently being held back until MSF v3.3.