I've been involved with a number of early-stage businesses, most recently as CTO of WinePicks. I've been sharing my thoughts on business, law and technology here for almost 8 years. Want to know more?
Explaining copyright with a drawing
3 years and 8 months ago 
While obviously a bit of an oversimplification, I think Erik’s drawing really does a great job of capturing the base dynamics of how copyright works (via Dan).
Basically, anything in the left circle requires permission; anything in the middle requires justification under the Fair Use test; and anything on the right is allowed by law.
