Creating a simple magazine for school?
It seems to me that if your okay with the work being done on Macs, the starting point would be to check out Apple's own iBooks Author (free, app store). It has a variety of layout choices and distributes through the iBookstore (including at a price of free, if that's what you want). I'm not exactly sure what you mean by "there's no revenue model" but this sounds most promising to me.