A great presentation on contracts and payment by Mike Monteiro …and his lawyer.
Amanda L. French, Ph.D. » Blog Archive » Facebook terms of service compared with MySpace, Flickr, Picasa, YouTube, LinkedIn, and Twitter
Social networking Terms Of Service compared and contrasted.
Facebook's terms of service used to say that when you closed an account on their network, any rights they claimed to the original content you uploaded would expire. Not anymore.
A brilliant summation by David Byrne of the possible business models available to musicians today.