Guinness World Records

Online edition of the book bearing the same title. Features world records arranged by category, the Daily Wow selection, games, and user favorites. Flash plugin recommended for viewing.
http://www.guinnessworldrecords.com/

International Guinness Record Holders' Club

Information for record breakers, record statistics, contacts for event organizers and record festivals.
http://www.recordholders.org/en/

The Most Translated Web Page

World record attempt for the most translated www page. Contribute by translating this web page to your language.
http://www.rekordfestival.de/english.html

International Federation of Memory Sports

Mental records, memory contests and achievements.
http://members.aol.com/mrmrtipper/ifms/ifmsindx.htm

Aviation and Space World Records

Compiled by Fédération Aéronautique Internationale (FAI).
http://www.fai.org/records/

Supercalifragilisticexpialidoceous.com

Records, amazing stories, supernatural tales and funny pictures.
http://bayani.com/supercali/

Around the World in Record Time

Describes various attempts to be the first around the world and the ways it was done.
http://www.didyouknow.cd/aroundtheworld/aroundtheworld.htm