MAPPER USER Joined 18-May-2008, author of 1 map. Bill Graham, The Dead, Airplane Bill Graham, sinister 60s rock promoter who invented the "venue takes a cut of the tshirt sales" scam, with his venues and pet bands. created 18-May-2008 · 19 nodes · Spencer Dryden Grace Slick · hippies Copyright ©2008 Soylent Communications