bundle websites and discount game websites.

Going to go out on a limb and say 99% of us forum-goers have both of these sites bookmarked.

Or this one.

More recommendable is this Steam Group Indie Bundle Tracker. Whenever a bundle launches they make an announcement, so you immediately get the notification of it.
Pro: You don't have to check for yourself, you get notifications
Con: Need to check activities feed to catch up to announcements while being offline (not really a con, on a website you have to check always)

Regarding discount Websites, take a look in this site's footer: SteamGameSales.com - Track Game Sales

Site I always found useful: IsThereAnyDeal

Gamedeals Subreddit is all you need to bookmark.

very useful info. thank you guys :D

Nice to know. I'll have to add those as bookmarks when I get home. Thanks!

thanks for cheapshark

good ones, guys!

EpicBundle's not a bad site, if you can handle the fact that the site's creator is apparently not a native English-speaker (there have been a few grammatical glitches, but it shouldn't really be that problematic, unless you freak out about proper sentence structure).

Plus, they have a handy countdown timer for the bundles that are up, and they cover bundles that other sites may pass up, like StoryBundle or that Polish indie game one from a couple of weeks ago.

IGB is a good place to go, as well, though I think they need a more appealing design.

I mostly use this:
http://cdkeyprices.com/

really guys? my thread is a bit more comprehensive: link

For German Users I would recommend planetkey.de. I have bought so many keys at low prices there. 100% legit.