NBC: Medium
Official network site. Show summary, episode recaps, video clips, photo gallery, dream journal, cast bios, and music.
http://www.nbc.com/Medium/

IMDb: Medium
Cast bios, user comments, quotes, trivia, goofs, and production information.
http://www.imdb.com/title/tt0412175/

Medium TV Show
Show blog, forums, and reviews.
http://www.medium-tv.com/

Wikipedia: Medium
Show synopsis, cast bios, trivia, episode recaps, and production information.
http://en.wikipedia.org/wiki/Medium_(TV_series)