HackingDojo.com
I've been teaching pentesting / computer hacking for years, at the personal and collegiate level, and have been in the Information Security industry since 1990. I have written books on the subject and spoken at multiple conferences on hacking. For a complete list of my credentials, and to review the courses, please visit the web site.
We decided to accept bitcoins at my daughter's insistence after attending DefCon Kids last year. Figured it was a win-win opportunity for bitcoins and my daughter (to learn about monies). Just trying to do my part to support the concept of bitcoins, even though my ISP, advertisers, hosting service, etc. won't accept them.
Enjoy!