Glitter Net Retro - Trap Door  
   Brief description of the series.
   http://zuul.gotdns.com/glitternet/programmes/trapdoor.htm

Trap Door Fan Site  
   Includes character profiles, a list of episodes, quotes, sound clips, and links.
   http://members.lycos.co.uk/globbits/

Oh Globbits!  
   Fan site with character profiles, pictures, sound clips, a list of episodes, the Spectrum game in TAP format, and an episode in Real Media format.
   http://www.chococat.freeserve.co.uk/trapdoor/

The Unofficial Trapdoor Page  
   Character profiles, quotes, sound clips, and links.
   http://www.angelfire.com/sc/cheekychilla2/

80sNostalgia.com - Classic TV - The Trap Door  
   Description of the series.
   http://www.80snostalgia.com/classictv/trapdoor/

80scartoons.co.uk - Trap Door  
   Description of the series, pictures, sound clips in MP3 format, and an interview with the series' creator, Terry Brain.
   http://www.80scartoons.co.uk/trapdoor.html

Smartass: The Trap Door  
   Description of the series, with pictures.
   http://www.geocities.com/smartass_1982/trapdoor.html

Oi, Fungus Chops!  
   Brief description and pictures.
   http://www.geocities.com/talking_goat_ash/trapdoor.html

Classic Cult Television Theme Song Lyrics - Trap Door  
   Opening and closing theme tune lyrics.
   http://www.culttelly.co.uk/lyrics/trapdoor.html

Madhouse Beyond - The Trap Door  
   Summary of the series.
   http://www.madhousebeyond.com/?mode=docview&view=trapdoor