You probably already noticed this bug... Some podcasts show up twice in the toplist. Here are some examples: 1 (FLOSS Weekly) and 2 (http://leoville.tv/podcasts/floss.xml) 4 (this WEEK in TECH - MP3 Edition) and 5 (http://leoville.tv/podcasts/twit.xml) One reason might be the URL's having or not having a space in the end of their names. Example: xmlUrl="http://leoville.tv/podcasts/floss.xml " xmlUrl="http://leoville.tv/podcasts/floss.xml"; Also regarding mirrors there might be other small differences in the URLs. Example: xmlUrl="http://feeds2.feedburner.com/linuxoutlaws " xmlUrl="http://feeds.feedburner.com/linuxoutlaws"; Great service!!! Thanks.