Prediction Markets on the Intranet

I had a long discussion on prediction markets today. I'm convinced that internal markets are a great tool for intranets: Test products, test ideas brought up through innovation management, give employees a sense of participation, gambling and of a chance to get in the spotlight ( - "I was right").
Mandatory prerequisites are:

• a decent usermanagement that does not add any hurdles
• an integrative intranet-environment
• a media landscape that offers more participation opportunies (wikis to start, discuss and sharpen ideas, polls to get through the first steps of idea-casting, posting and commenting-opportunities)
• an open and supportive company culture
• some sense for competition
• a moderator/admin who can get things going

The preprocess - how to find the right questions to treat on the markets - is even trickier to me than the market itself (especially regarding innovation management, bringing up, evaluating and trading ideas). I'm still looking for great examples in that area.

User Management & Intranets - Best Practices?

The good thing about intranet users is that you know them, that you know how many they are and that you know, which infrastructure they use.

The not so good thing is, that they also know you - and they will come and get you if they dont like what you do. The expectations are a lot higher; everything needs to be simple and great.

That's the way it should be; but dont forget: you cannot gain as much reputation through great features as you can lose through inconveniences with the basics.

Nobody will be proud to say "I'm in, I made it", if they just went through a painful registration process, you can't give them gimmicks and you cannot really reward them - so you have to make a good job.

Thats really challenging when you have to create a new usermanagement for several countries and companies that have acutally not been working together up to now.

It's kind of hard to decide when the challenge is out and the madness begins if you are talking about 60000 users, 9 languages and some really business critical applications.

There are a lot of Best Practices dealing with intranets, features, contents - but I did not find anything helpful dealing with the setup of a big usermanagement - any suggestions?