How about adding info on how to make search engine index your site ASAP? That's what most people look around for (including me).
$result=explode("\t",exec("du -hs ".$path),2); $result[1]==$path ? $result[0] : "error"; echo $result[1];
If you are allowed and using exec or system command then you should escape the user provided data for any special characters using...
Also you can put youe websites links or rss feeds on community sites like twitter / facebook etc. You get loads of traffic and crawler attention.
Separate names with a comma.
