Since it has been recently pretty active on web games around here, this is an index for threads and web games pertaining to them. These games all are browser based. You need a webbrowser to use those games, but they are not a flash game where you just do some stuff and the game is over. They are rather a longterm thing.
Our own browser game maybe? Look at this topic.
Minicities
No big deal, you just visit the city once a day, and for that the city grows. Depending on what link you follow to it, you give it +1 population or industry or the likes. Doesnt take much skill but you can fast add a new city if you like.
Minicities Thread -
The GameStrafe City, visit daily!
Cyber Nations
Register to build a nation. Then edit your own nation and select "enter specific" under alliances, then enter "GameStrafe" to join the GameStrafe alliance inside the game. You buy land, infrastructure, military and you trade resources. You can fight against others if you like. All in all a pretty neat game.
Thread about it -
Cyber Nations Homepage