I had an inkling I was interested in civics, but after iCivics I was sure!
I visited this site after seeing it on a CSM website list, and it has rightfully earned its place. I think this is a great resource for educators, because it relays complicated concepts in simple and fun ways, as well as providing an entire section dedicated to lesson plans. My only warning is that some of the games are highly addictive but informative so I don't think many would mind. Games include Win the White house, which teaches players about the process of campaigning, and Executive Command, about making tough choices concerning the country as president.
But the piece de resistance is the 'Impact Points'. You play games, you win this virtual currency, and you invest in local movements that matter to you. Every three months, movements with the most impact points are chosen to receive a donation of $1,000 dollars.
In conclusion, this is a great website for academic purposes as well as for kids who are expressing an interest in civics/politics.