We've recently updated the forum software that BAF runs on. One of the advantages of the update is that the new version of the software creates search engine friendly URLs. This has already become apparent in the site's SEO. The number of pages we have indexed in Google has almost doubled. I'm assuming that this is because our pages now have more than one URL. For example our Useful Online Business Resources thread can now be accessed from both of the URLs below; http://www.businessadviceforum.com/showthread.php/377-Useful-Online-Business-Resources http://www.businessadviceforum.com/showthread.php?t=377 However, our search engine rankings for some of our primary keywords appear to have declined, following the update. Again I'm assuming that this is because individual pages each have different URLs. I feel that my choices are as follows; Discard the old URLs, maintain the new search engine friendly URLs and wait for the search engines to start ranking us highly again. Revert to the old "showthread.php?t=377" type URLs. Any opinions or advice would be greatly appreciated. Thanks!