I'm not sure whether this has been posted previously, but I don't recognise the way the games are being presented. Basically it lets you know which bundles are ending, then lists all games that are currently on a deal. You can filter for twenty different outlets which are:
Steam
Gamersgate
Gamestop PC
Gametap
GamesPlanet
GreenMan Gaming
GetGames
Desura
GOG
BeamDog
DotEmu
Amazon US
Adventure Shop
Nuuvem
IndieGala Store
DLGamer
GameFly PC
Origin PC
UPlay
ShinyLoot
You can find the site HERE