Universal Studios Themeparks
Guide to Universal's Orlando, Hollywood, Japan and Spain themeparks, including information about tickets and vacation packages.
http://themeparks.universalstudios.com/
Boomers
Operates a number of amusement and water parks throughout the United States. Offers news, employment opportunities section, and information on the Fun Club.
http://www.boomersparks.com
Ripley's Believe It or Not!
Offers museums and attractions in multiple countries focusing on odd and amazing things. Provides videos, details about exhibits, and their history.
http://www.ripleys.com/
Theme Park Adventure Magazine
Includes current and back issues, ordering information, and park news.
http://www.themeparkadventure.com/