vB Global Translator automatically translates your forum into 28 other languages via the Google translate API, stores those translations in a MySQL database then rewrites new URLs so you end up with 28 new pages in 28 new languages for every current page. So, if you have 10,000 pages, this MOD will translate those pages into 28 languages making a total of 280,000 pages in 28 languages. This results in a flood of international traffic and referrals from the search engines. If you are getting 1,000 visits a day from your 10,000 pages imagine how many referrals you will get from 280,000 pages! The current languages this MOD works with are all supported and allowed by AdSense so you can expect your income to rise accordingly without issue. I have this running on a 20,000 thread forum and after a few months I have more than doubled my search engine traffic. http://www.vbulletin.org/forum/showthread.php?t=217329