If you can make up some sort of advertisement with info about the magazine and how to support it, then I can print off a good number of them and see if I can leave them at my local camera store for their customers. They slip these sorts of things in the bag when you purchase something or leave it on the counter by the register for one to pick up at their leisure.
A notice I could send to my camera club members would be an easy thing to get out. A link to a public information page would be great.
going along with the above, I too could annouce this to my students and see that the word gets around at the local camera stoes.