Law & Order: Criminal Intent - Official USA Studios site for the series. Includes production information, cast and crew biographies, episode guide, pictures, and viewer forum. - http://www.usanetwork.com/series/criminalintent/
IMDb: Law & Order - Criminal Intent - Cast, crew, and production information, as well as viewer comments. - http://us.imdb.com/title/tt0275140/
Epguides.com: Law & Order - Criminal Intent - Lists the title and air date for each episode. Also offers links to cast information. - http://epguides.com/LawandOrderCriminalIntent/
NBC.com: Law & Order - Criminal Intent - Official site for the series. Includes production credits, pictures, episode and cast information, and show overview. - http://www.nbc.com/Law_&_Order:_Criminal_Intent/