On twitter I follow some indie devs and PixelProspector (https://twitter.com/PixelProspector). One of the devs is also a journalist: https://twitter.com/GunpointGame
PixelProspector has added KU into Greenlight Picks when I twitted them, perhaps they can also make a news that it's out. I don't think they do reviews though.
Also, back in the day I discovered KS by watching WolfireGames (https://twitter.com/Wolfire) game design overview video about it.
I don't follow actual websites, Kotaku and Penny Arcade come to my mind when I think "gaming website". Oh, also Metacritic (just heard about it, never visited until today).
Here are YouTubers I can think of:
http://www.youtube.com/user/TotalHalibut
http://www.youtube.com/user/husky
http://www.youtube.com/user/PressHeartToContinue
Edit: I'd probably pick PressHeartToContinue first, 'cause she doesn't seem to try to be funny and dynamic that much. Just in case, she's good friends with husky.