IMDb: Navy NCIS: Naval Criminal Investigation Service  
   Cast, crew, production information.
   http://us.imdb.com/title/tt0364845/

CBS: Navy NCIS  
   Official network site. Includes series overview, cast information, air schedule, and multimedia.
   http://www.cbs.com/primetime/navy_ncis/

Paramount Television: Navy NCIS  
   Features upcoming episode information, show description, character and cast biographies, photos, production notes, and episode guide.
   http://www.paramount.com/television/navy-ncis/

NCIS and Company  
   Features include photos, episode guide, information and games.
   http://www.songbirdsplace.com/NCIS.htm

NCIS FILES: Tony Dinozzo  
   Fan site for Michael Weatherly's character. Includes news, multimedia and images feature both the actor and the show.
   http://www.ncisfans.com/

NCIS Review  
   A collection of fan reviews of the television military show NCIS.
   http://www.rosepetaldesign.com/ncisreview/