How many online game rental sites are there?

i know of gamefly but are there more?How many online game rental sites are there?
The biggies:





Gamefly - Great supply of games, easy to get new releases.





http://friends.gamefly.com/r/bd4691280e7d102a919d for a trial





Gameznflix - Cheapest plan to get multiple games at once, a bit slow on sending games though and doesn't have some new releases once they come out.





http://www.gameznflix.com





Gamerang - Eh, only good if you live on the east coast. Wasn't too happy with them and cancelled before the trial was up.





http://www.gamerang.com





Gamefly was the best just because of the ease of getting new releases.How many online game rental sites are there?
www.gamesnflix.com





your welcome. :)
And there is GottaPlay Interactive:





https://www.gottaplay.com/





I am currently a member of both GottaPlay and GameFly...