A former McAfee CEO appears to have found a way around the legal minefield hindering anyone attempting to enter the music sharing market: by a licence to webcast content.

Mercora is a P2P - "person to person", is how it defines the term - network that allows users to share songs without actually downloading them. It's an approach the company dubs "P2P radio".

http://www.theregister.co.uk/2004/06/07/mercora_p2p_radio/