The Erotica Review (already a classic monthly mag despite only having been around since 1995) recently went digital-only. There's a lot of that going around. You can get a free copy of the 100th issue.
The online version is one of those bloody annoying flip book things that makes a papery sound as the animated pages turn, and displays a double page spread with unreadably small type, and the pdf version isn't much better.
I hope they will eventually realise that a digital magazine isn't just a magazine you can't get in paper form. Its shape, type and overall formatting should be optimised for the screen, not the printer.