If you have children you have to give Jump Start games a try.  My kids have always enjoyed Jump Start educational games, but their new(maybe just new to me) online games makes it easy to play with more variety.  I try to steer them clear of the gaming consoles for now, and the Jump Start games are interactive and captivating enough that the kids will spend hours playing.  Check it out and register as a free guest to give it a try at Jump Start.