Best Free Reference Websites

The Reference and User Service Association puts out an annual list of best websites, and they just released the 2010 list. Most I have not heard of, but they do sound useful. There's fun stuff, like the Baby Name Wizard, and serious stuff, like FedSpending.org. The LIFE Photo Archive is one I want to look at. There are several government sites on the list as well as some that would be good for school reports. Take a look. You might find a new favorite.