http://indiegamestand.com :

The Real Texas
- min $1: GOG and Desura

Beat the Average:
- Paradise Perfect Boat Rescue
- Fold Sum'm! Papercraft
- The Real Texas Original Soundtrack

http://www.greenmangaming.com/s/au/en/pc/games/action/alien-spidy/

Alien Spidy $2.49 (Steam) -- cheapest seen so far....

Until it turns up in an Indie Bundle, of course.

If you're looking for more Steam Trading Card games, GG has Steamworks Magicka for $2.49 / £1.74 (slightly cheaper in $).

Edit: is elder-geek.com working again?

Just tested it and apparently the code is invalid

try "derp" for 7% off

I haven't seen it mentioned yet, but GMG has Stellar Impact (Steam Key) for free for the next 3 hours. (Or while supplies last.)
The site is slow as hell (as usual during a giveaway), but with patience I got through and got my key.
http://www.greenmangaming.com/s/us/en/pc/games/strategy/stellar-impact/

Source: http://blog.playfire.com/search/label/Deals

I can't check out. So much for my free game. :(

Epic freebie server crash...LOL

They could barely keep the servers up before without the freebie, what were they thinking

Yeah.. they should've got rid of the Stellar Impact freebie and kept the XCOM pack deal. XCOM was a great deal on its own.

It's out of stock already :C

not quite a pc game sale but a decent game offer for anyone interested and in the UK:
i saw max payne 3 in asda for £7 - XBox 360 & PS3.
i tried to get myself a copy but they were out of stock at my local. :(

For example Humble Store: I just never buying any game that is sold in Humble Store, because sooner or later they will appear at some Humble Bundle. I think it's a little sad, thinking about developers, but in my case, as I have a very huge backlog, so when I actually play them, they would already be "old" and/or they already being sold at large discounts.

Here is a list of games from Humble Store(aka: next games in Humble Bundle)
http://pcgamingwiki.com/wiki/Humble_Store#Games

That list has always been horribly out of date, there are more games sold via HS then listed here, and the games sold via Humble Store has no relations with games appearing in HiB's.