The Blue Door  
   Offering permanent cosmetics, tattooing, piercing, and henna application. Location information and staff details. [Denver]
   http://www.thebluedoor.net/

Bound By Design  
   Shop history and portfolios, appointment information, advice section, and detailed information on the various tattoos and piercings available. [Denver]
   http://www.bodyartusa.com/

Holey Rollers  
   Offers piercing and tattoo services and includes information on hours, location, state regulations, and shop background details. [Colorado Springs]
   http://holeyrollers.com/

Uncle Bud's Studio  
   Studio information, artist links and location.
   http://www.tattooing-piercing.com