Encyclopedias
- Britannica Online
- View Resource
- Encyclopedia Americana
- View Resource
- Encyclopedia Article Center - MSN Encarta
- encarta.msn.com/artcenter_/browse.html
- Encyclopedia Smithsonian
- www.si.edu/resource/faq
- Facts Encyclopedia
- www.refdesk.com/myency.html
- Reference Desk: Encyclopedias
- www.refdesk.com/topency.html
- Stanford Encyclopedia of Philosophy
- plato.stanford.edu