Just recently, we found a site that's been educational as well as fun. It's called Trader Rewards (No, I'm not an affiliate). It's a mock trading site in which you buy and sell real stocks with the $100,000 hypothetical cash you are given. You compete against other players, and those with the best daily, monthly, and annual gains win cash prizes. The kids and I spent the whole evening diversifying our portfolios and pouring through analyst research. We had so much fun together without spending any real money, and the kids, as well as the old lady, learned so much useful financial information. Give it a try, just for the hell of it. It beats playing solitaire or Free Cell, and it costs nothing. The site is at www.traderrewards.com.