Yeah, I think the only way to find that stuff is online - either here or in an ezine. Not aware of any print mags out there apart from the fetish porn ones. However, having said that, I do know that at least some of the BDSM porn mags do have useful articles in between all the photos of leatherclad goddesses. As the old saying goes, I only buy it for the articles [actually, I've not bought a porn magazine, BDSM or otherwise, since I was about 18 mainly because there is so much better stuff on the internet for free - both information and photos ]

In the UK, Forum magazine is an unusual one in that it is mostly text and very few pictures (usually just a cover photo and one or two B&Ws inside). The text is mostly readers letters about thier own BDSM experiences (some interesting, some less so) but there are also erotic stories and articles as well.

However, I am not aware of a print magazine that is wholly articles on advice and practical ideas as you want.