I'm not playing WoW anymore, but when I did, I used mmo-champion. I found this website very useful, but then I started to play SC2. Now I am looking for a site with the same amount of updates/patch notes, but i can't find one.
You could use the Starcraft 2 frontpage for all of the patch notes/updates, when it comes to me and patch notes I usually listen to HuskyStarcraft/HDStarcraft/PsyStarcraft talking about them. =)
TL is really useful if you want to learn how to play well, lots of the pro-gamers stream while they play. Also the big tournaments are getting streamed aswell.