Over at The Atlantic, Alexis Madrigal tracks down and displays some of the fake magazines used in Ridley Scott's great film Blade Runner. Worth a look.
Along that same line of thinking, Shortlist.com has a look at some fake covers of real magazines that were used in non-science-fiction films through the years.
And if that amuses you, but you don't have InDesign and Photoshop on your computer, check out this Fake Magazine Cover Creator (they even have Future magazine, how sweet). Such as the bit of fun I had creating my own Fangoria cover (at right).
Fake is fun.