The ALA Reference and User Services Association (RUSA) has named Best Free Reference Web Sites of 2006.
- AF: Acronym Finder
- Constitution Finder
- How Products are Made
- In the first person: An index to letters, diaries, oral histories, and other personal narratives
And there are lots of other really interesting sites. Definitely worth a little browsing time.
Thanks to my UW Madison colleague, Nancy McClements, for the tip.