TopReference.com offer reference website links to browse for education, libraries, dictionaries, colleges, universities, k-12, language schools, book and magazines.

Academic Competitions

Listings
Includes an essay contest that will allow one grand-prize winner to receive a free summer study abroad trip to London, as well as a cultural event calendar.
http://www.internationaleducationweek.com/
Hosts competitions for high school and college-level teams.
http://www.naqt.com/
Official site of the National Spelling Bee with general information, rules, results, and more.
http://www.spellingbee.com/