I offer a couple different courses available for free via email on this site. There is the Free Computer Security 101
course and the Free Introduction to Security Tools
course. But, if you have already done those and you are still looking to broaden your horizons and expand your security knowledge here are a couple more alternatives for you. SearchSecurity.com is now offering free CISSP training
using on-demand webcasts hosted by Shon Harris, author of the CISSP All-In-One Exam Guide
and respected CISSP expert. As of right now there are only two of the domains available, but they intend to add a new domain each week until they have them all covered. For a limited time you can also take advantage of free security training from Microsoft by signing up to take Hands-On Lab 2811: Applying Microsoft® Security Guidance Training
. Good luck!