commercial use, trademark ...greenspun.com : LUSENET : Burning Man : One Thread
From the BM website ...
Finally, you need to read the fine print on the ticket. "The commercial use of photographs, video, film, or any other medium taken at Burning Man is prohibited without permission of Burning Man." The name Burning Man is trademark- and copyright-protected and its use is also forbidden without permission. Commercial video and film crews will be asked to sign a site-usage agreement that includes the stipulation that 10 percent of your proceeds will be given to Burning Man should you sell your footage commercially. This includes sale for stock or a production video. News crews with non-commercial intent, and previous permission from Burning Man, are exempted. All others will be asked to comply."
-- rp (email@example.com), August 22, 2000