I own a PC, a DS, a Wii, and a PS2. I also have access to a friend's 360. Therefore, I do not care to read reviews of games that are not for these platforms. This takes the Gamespot review feed and filters for those platforms.
PS3 news from the following sources:
US Playstation blog
IGN (and IGN insider)
PS3Fanboy
Also, feeds from 1up, joystiq, gamespot, and GamesRadar, Kotaku filtered for PS3 content.
Titles from this pipe have the source website name in it.