One of the best sites out there. You can get old games with integrated dosbox for ridiculously low prices. One click and play the game. Works quite like Steam, only much more friendly and no DRM.
I bought like 10 games from their christmas / new year sales already. If you are an old timer like me, don't forget to check www.gog.com
Great website. So many classics like SIM City 2000 in their catalogue. Admittedly they don't have as many sales as Steam but at least their games are DRM free and you don't have to install any software from them...other than the game of course.
Brought SM Alpha Centauri. Worked perfectly even though my CPU isn't supported :)
Is that some kind of advertisement? By the way, for the most part, if you buy game there, money don't reach the developer at all. Mostly because developers are long gone or changed completely. It's like, say, buying x-com on steam. Jeez...