No worries, I jsut wasn't sure what it was refering to
I haven't used Habbo Hotel, but I think i knwo what its like.
I'm thinking Macromedia Flash would be quite good, but its not _real_ programming, and most people that use Flash aren't here. But someone may use it.
Java would be good, but it's _evil_. You may find a poor soul to help you with it.
But if you move away from browser based "games/chatting communities" you could use any language, and that would probably get a few people form here volunteering. But the users would have to download the program.
But whatever language you do it in, it'd be hard. Thats why things like Habbo Hotel aren't popping up everywhere on the net. It would need be be compatible with different browsers if it is a browser based thing. And it will need to be very secure. And there would need to be a load of servers to handle all those people at once.
If you're lucky you'll fidn a programmer who agrees with you idea and helps for free. But for the most part you'll have to pay a lot if you want someone to do this for you,a nd you'll need a whole team of programmers who can update fixes and bugs etc.