Submit your proxy site to http://www.xproxylist.com and give us a backlink. Your site will be listed within 24 hours and you'll get a free e-mail blast to all of the proxy users on our list. This is a very active list that is maintained regularly, not one of those abandoned lists which end up being full of spam. All of the sites in the list are rotated at random so everyone has several chances to be listed at the top.

http://www.xproxylist.com