DemoNews.com
DemoNews.com lists both freeware and shareware games. No registering, waiting in line or popups. Programs tested for spyware, viruses and unwanted 3rd party applications before posting.
Estimated Daily Visits: 6,000
Hosts files
http://www.demonews.com/
Mad Monkey
Massive selection of games, which are easily browsable. Accepts any game.
Estimated Daily Visits: Unknown, but I guess 200-500
Doesn't hosts files
http://www.madmonkey.net/
Game Xtazy
Nice professional design. This site provides reviews, ratings and number of downloads of your game. They list thousands of games. It looks like they accept almost any game. The site is actually all done in static HTML, which means they must have an impressive automated filing system, or possibly they've reprogrammed their server to think HTML pages are dynamic. It's also run by Alawar Entertainment, which is a large shareware game publisher based in Russia (and also means they list their own games first with 5 star ratings.)
Estimated Daily Visits: Unknown, but I guess 5,000 - 10,000
Doesn't hosts files
http://www.gamextazy.com/authorarea