We've got a mural artist's user group here that we support, many mural
artists in our registry, and mural artists working directly with at-risk
youth, taggers, etc.
I'll pass on your email address to one of the muralists, Phil Coleman.
Or you can call him at 702-853-5602. He has a reference list of
publications he could send you and we'll work on getting you on the
newsletter list if you'll make arrangements with them.
Here's one lead in your area: there's a man in Toronto who does big
commercial murals for Nike, some vodka company, was featured in an
airbrush magazine two months ago or so.
Good luck! More to follow.