Is this an idea worth pursuing further?
NickNYC242: This is a good aggregation idea for learning - why not find a few content providers/creators that could serialize a process for learning - so pieces of a song, or basic chords for guitar. Get some content made by people looking to raise their recognition, and customize it for the site. I'll bet you could get free contributions, or even mechanical turk it for different languages. Ad-supported is definitely the model right now, but what about taking requests and getting people to "donate" for specific content providers to produce requests - you may have a runaway hit for people that can tab/teach/play. Best of luck.