Yes wikipedia is usually pretty good, lots of info. Encarta is good too, but sometimes they will block if you are not a subscriber ($4.95 month), the service is worth the money, but I would also try OWL or Pioneer, as they can show you how to get into alot of college Libraries. If you are in school, look for a class in library literacy, it gives you a gift like no other, it can show you how to find almost anything you will ever think of looking for,
plus when I took it I received info on 5,000, yes FIVE THOUSAND DATA BASES that the average person doesn't even know exist. Knowledge is power, and it's a whole lot of fun, too.