Submit to del.icio.us with tags like: unblocker, anonymous, myspace proxy etc. And then to a few reasonably well established lists like: http://www.myspaceproxyindex.com/ http://www.theproxyindex.com/ Doesn't take too long to build good traffic - just a case of being noticed.
Social bookmarking sites like digg, stumbleupon, del.icio.us etc Toplists: bypasser.org prox-list.info etc Topsites: proxyfreelist.com proxytopsite.com etc =]
1. http://www.proxies.tv 2. http://www.proxystuff.com 3. http://www.proxytoplist.com 4. http://www.theseproxies.com 5. http://www.listofproxies.com 6. http://www.proksies.com 7. http://www.greatproxylist.com 8. http://www.topproxies.info Peace,
try also http://www.trustedproxy.com PHP: i manually submit every link and check it every week. This toplist gets natural google traffic because of the keywords on domain and is already favourite in for many users after doing 2 adword campaigns.