[Deque]

Code:

else if(strstr($url,"linkbucks.com")) { return "linkbucks"; }

This won't work for most linkbucks links, because linkbucks has so many domains.
I tried to collect them all:

Code:

"any.gs", "tinylinks,co", "linkbucks.com", "yyv.co", "miniurls.co", "qqc.co", "whackyvidz.com", "ultrafiles.net", "dyo.gs", "megaline.co", "uberpicz.com", "linkgalleries.net", "qvvo.com", "urlbeat.net", "seriousfiles.com", "zxxo.net", "ugalleries.net", "picturesetc.net"

There could be more, though, as linkbucks keeps on buying domains.
(Sidenote: The PHP-tagged code is almost impossible to read.)

Other than that it looks good. :ok: