The idea of publishing a monthly column in Nuts & Volts or Servo sounds like a great idea. They'll often run stories on teams and events now but a dedicated column would be a great step forward. That being said the logistics behind deciding who wrote the articles, the editing of such articles and making what is limited to a single column an even handed piece would be dificult(but then again dificult things get handled by FIRST teams on a daily basis.)
A web-zine on the other hand makes a lot sense. I currently subscribe to a couple internet only webmags. They certaintly don't have the impact a fully laid out and printed magainze does but they're easy to recieve and show a lot of potential. Just as an example check out
http://www.artkrush.com/current/ Artkrush is a webmag that covers art. Content or even quality aside its a nice format that is easy to mail out to people. Just as a note a webmag like a printed magazine costs a lot more to run than a regular website. Instead of glossy photos you have high quality jpegs chewing up bandwith. The emails they send, are just the text and the images get downloaded from the website.