Advertising in Space

"In 1993, a Gerogia-based company, Space Marketing Inc., announced plans to launch square mile size billboards made from mylar sheets into low orbit. Logos about the size of the moon would have been visible to millions of people on earth. Strong public opposition caused them to withdraw their plan."
--exerpt taken from http://www.newrules.org/info/space.html

I haven't found much more information regarding the truth of what you see above but I have found extensive information about Pizza Hut advertising on a Russian space craft.

Click HERE to read.