An Avalon Hill ad self complimenting for the 25th anniversary from MR July 1983:
http://www.flickr.com/photos/28697569@N00/2242409150/
Task Force Games ad about Nexus magazine sales (amazing!) from MR July 1983:
http://www.flickr.com/photos/28697569@N00/2242409538/
An ad for the "new" Interplay magazine after Metagaming closure - at the best of my knowledge, it never came out - from MR August 1983:
http://www.flickr.com/photos/28697569@N00/2242409884/
Another Task Force Games ad with their top10 sellers list and some Honorable Mentions too from MR July 1983:
http://www.flickr.com/photos/28697569@N00/2242410138/
And I repeat here the new links inserted in the very first post (I guess many people never saw them...)
A TSR ad for its 'profit formula':
http://www.flickr.com/photos/28697569@N00/2209210061/
Yaquinto ad for the album games (games sold in a record package - do you remember the time when SJG attempted to use VHS cases as a cheap box? I guess to know where they got the idea first...).
http://www.flickr.com/photos/28697569@N00/2210003642/
An Avalon Hill ad boasting about 'huge orders'...
http://www.flickr.com/photos/28697569@N00/2210004806/
A SPI ad for the new Dragonquest RPG:
http://www.flickr.com/photos/28697569@N00/2209212519/
A zany ad by Martian Metals (designed by Steve Jackson) for their miniature line and the MARS

system:
http://www.flickr.com/photos/28697569@N00/2210005922/
Another ad from Yaquinto, this time for the Dallas game license:
http://www.flickr.com/photos/28697569@N00/2210006080/