Below are some links to a variety of dance pages that you might find interesting:

General
http://www.dancer.com/

http://www.voiceofdance.com

http://www.isadoraduncan.org/

Ballet terms
http://www.abt.org/library/dictionary/index.html

Ballet information
http://www.nationalballetschool.org/pages/firststeps/

http://www.abt.org/library/galleries

Modern dance
http://www.danceonline.com/

Stage makeup
http://www.rso.cornell.edu/teszia/makeup.htm

Tap dance
http://www.tapdance.org/tap/taphome.htm

Feel free to suggest any links on the message board and we'll add them to the list.