An eagle-eyed poster on the ODD74 forums spotted an interesting find on the Internet Archive: all 19 issues of Ares Magazine.
After some digging on the site, I also found the archives of the following:
EDIT: above links removed, as these are no longer available for public access.
In the non-gaming category we have:
CRAZY, Marvel's attempt at a Mad Magazine knock-off - 91 issues!
Galaxy Magazine, the classic magazine of American science fiction - 104 issues!
Starlog Magazine - 208 issues!
Holy crap! How can these even be legal?
Edit 1: Some of these files have been siting on the archive for about a month and a half. Check out the "this just in" box at the bottom of the Polyhedron link above for example.
Is this the work of a pirate, uploading a torrent to the site? I don't know. Many of the files are available in PDF, OCRed PDF, epub, and other formats. This kinda look official, but also kinda doesn't. What do you think?
Edit 2: Obviously, if these links turn out to be illegal and the files are removed from the Internet Archive, I will remove these links and the links on any subsequent post about these magazines, as I do not want to link to pirated material.
That said, the Internet Archive is recognized as a non-profit library by the state of California and is a member of the American Library Association, so these materials might be perfectly legal.
Edit 3: According to the XML files located in each of the directories for the individual files, these were uploaded by someone using the email address "firstname.lastname@example.org".