Long-time friend and reader Shawn sent me this…
Check this out: http://www.10minutemail.com/
It might be good content for your ezine. It gives you a temporary email address so that you can sign up for more info on other sites, read/get the info you want, and then the address is gone (so you can avoid spam, too much email, etc).
You have to leave the page up after it gives you an address. It refreshes and shows the reply emails you get.
I haven’t tried it myself, but it sounds interesting.