Usenext.nl is associated with
http://www.usenext.com and their affiliation program ran by the Russian organized crime
http://www.friendlyduck.com , all controversial/annoiyng sites advertised heavily all over the web to capture traffic from free file sharing sites.
Most of the paid content here, is collected/taken from free p2p file sharing networks like eDonkey, kad and bittorrent and offered here for money. Beware of this misleading habit that tries to sell things available elsewhere freely for little or inexistent extra benefits like an alegedly increased d-load speed. Many of the claimed available files are fake (past searched terms by others).
Well, these are a type of leeches who sell the blood they suck!