IsThereAnyDeal and CheapShark are the best way of finding deals from authorized sellers. It can also be worth keeping an eye on /r/GameDeals. If a store is included at one of these, they should be okay.

Key resellers and what they mean for you

(↑ link to the original ↑)

Something that has stuck with me:

One thing to remember is that even if you receive a working key from a reseller, this doesn't necessarily make them "legit". It's a bit like claiming that winning at Russian Roulette makes it a "safe game". When working with resellers there's always the chance of getting a bad key, or having a game later revoked from your account. And for many people it's a hard lesson learned.

There are some YouTubers who are sponsored by G2A and other key resellers; they're paid to tell you that you should use G2A/other key resellers. Please don't take their advertisement as anything more than a paid endorsement.

Notable:

Stories in the media:

PCMR Posts

2017:

2016:

2015 and earlier: