My mom showed me this website last year, and my little girls loved it, so I figured I would share it with you all, and hopefully your children will enjoy it as much as mine do.
It has a lot of different things that you can visit on the page. It will tell them if they have been naughty or nice, You can go to the toy shop, you can call Santa, But what is really cool is on Christmas eve, you can track Santa, and see how close he is to your house.. My girls watched this, and when they saw that he was near, they tore out of here, and was in bed in a flash.. It was so funny, I wish I would have had my video cam going at the time.The tracker will only work on Christmas Eve..
Anyway, I just wanted to share, and I hope you all enjoy it..

http://www.claus.com/village.php