We live in a wonderful time when free, open education is abundant. The EduPunks' Atlas and its accompanying guide are a great resource for exploring your DIY education possibilities.
The Atlas "maps" organizations that provide online, offline, or a combination of courses. You can sort them by name, audience (elite or mass), and not-for-profit or for profit.
The size of the boxes represent the kinds of opportunities available, e.g., if benefits include socializing with other students or progress assessment. (I'm not sure what the colors mean.)
This site doesn't list every educational resource available, and it includes some that you might not expect (such as Twitter), but you'll likely find a few resources you weren't aware of before. For even more help, see the Edupunks' Guide (PDF) to free-of-charge education.