A little shout out for the open submissions policy for the prestigious US Poetry magazine.
It is very easy to send your stuff in and you can do it online. You set up an account and you can check progress and resubmit using the same details.
Why can't all international magazines be this easy...no hoo-hah about reply coupons and the like. Nice site too plus resources.
Find out more here http://www.poetryfoundation.org/poetrymagazine/submissions