What is the difference between streamonlinemovies.com affiliation and this url http://streamonlinemovies.com/?hop=xxxxx I have seen a many of times as affiliate links looks like http://aaaaa.hop.clickbank.net/ something like this and sometime when we click on some download link the link open is just like http://streamonlinemovies.com/?hop=xxxx .. So tell me the basic difference b/w them.