Hamish, The e-zine idea is not the one in questions. APK already has The Freerunner e-zine. What everybody wants to happen is a physical hardcopy magazine that they can take with them.
SDTrace, not a bad idea, it'd be cool to find ways to refer people back to the website like that!
Most magazines do this now. A friend of mine writes for Esquire and I read his articles online (free), then also pick up the hardcopy, just to have to refer back, loan to people and support him. Sometimes content is exclusive to the website, other content is, or can be exclusive to the magazine.
I think there's things about a magazine format that would be interesting. There'd be ups and downs and I think definitely controversy and haters (in PK, no?).
I'd hope the magazine would try to avoid putting traceurs on pedestals and glorifying them, but I think hero worship by the weak minded, or young and impressionable, is an inevitable side-effect of large full color glossy photos and ads. Also, as the magazine would be selling ad space, this would intensify the already in motion process of commercialization of parkour. Who would advertise? Innov-8, 5.10, Nike, Addidas, APEX Movement, Red Bull, Bud Light? Would other companies notice this new market and try to sell us "the perfect hair gel for that active lifestyle"? Maybe.
I'm not going to opine whether any of these are good or bad, other than to say that they're all a bit of both. I just thought I'd throw the idea out there.
In the end, I'd subscribe, and try my damnedest to submit a few articles, too!