The internet and record companies.
I just came across this on fRoots' board, courtesy of Ken Josenhans. Billy is giving his opinion on the changing state of the music biz to an interviewer at Midem. It's dated the end of March so apologies if it's already appeared here.
http://blog.midem.com/2011/03/nancy-baym-billy-bragg-on-the-double-edged...