http://news.com.com/2100-7341_3-5715470.html
"The Federal Aviation Administration proposed Thursday to amend its regulations to ensure that it can enforce a law that prohibits "obtrusive" advertising in zero gravity."

""Objects placed in orbit, if large enough, could be seen by people around the world for long periods of time," "

"outsized billboards deployed by a space company into low Earth orbit could appear as large as the moon and be seen without a telescope,"

""Large advertisements could destroy the darkness of the night sky," regulators said."