Ever heard of Kristie T of www.webmomz.com , on her blog she has some great info on building a profitable e-zine.  I am about to start one in a few weeks and I found some great tips from her here
http://www.webmomz.com/blog/tips-for-making-money
(url shortened for aesthetics)
Do not think a mailing list is the same as an e-zine, they [...]