I have not looked around yet and I am not sure I'll do. This one was very interesting and I learned a lot about things I wanted to be informed about. A game as such does not attract me too much. But thank you for this question. Who knows? Somebody might point at a nice site.

sir-repitous has brought up HSX many times.

I will probably go there and some of the facebook games i have been turned on to lately.

I won't be playing the quiz game after the way PopSci lied to us.

Looks like there is a prediction market at www.intrade.com. I haven't had a chance to check it out yet so I can't comment on how well it's run.

But it's not as if HSX is free of problems.
Last Oct. they closed down and rolled-out a "new improved" Beta, with butloads of "social-networking" features, and bonus H$ for using them...

There was riots in the streets.

Half of the members boycotted the site, closed their accounts.
Trading got as slow as it is here.(HSX has 750k members to PPXs 36k) People flooded the new social features with spam and BS in protest. (and to pad their accounts with bonus H$)

They closed the Beta and brought back the old site after 4 weeks.

There was a public beta-test last month, but they didn't close the main site.
Eventually they hope to switch to a new format without loosing members.

Here's a great looking predictions market website I found, it's called NewsFutures: http://us.newsfutures.com/

Looks a lot better then PPX, not to mention a bit more challenging!

Thank you, mg.mikael!

Thanks mg.mikael. A quick look through the website just highlights the potential that was wasted here at PPX.

Not going to play here. If I play anywhere it will be somewhere the game is important, not an after thought. Travian perhaps, it's always fun.