these do expire after a certain number of orders have been placed but they do come & are completely free.
i subscribe to about 25 different mags (all for free) that i send over in my are packages. ill post more offers here as i come across them.
free subs:
"the green" http://www.freebizmag.com/zdthegreen01welcome.htm
"tennis" http://www.freebizmag.com/emailtennis05welcome.htm
"new man" http://www.freebizmag.com/emailnewman02welcome.htm