http://www.housemd-guide.com/ - A comprehensive episode website
http://www.politedissent.com/house_pd.html - A doctor's blog reviewing the medicine in each episode. The original site doesn't work any more, but it's available at archive.org
http://clinic-duty.livejournal.com/12225.html - Comprehensive and accurate episode transcripts
[[1]] - House at Wikipedia
http://www.imdb.com/title/tt0412142/?ref_=nv_sr_2 - House at the Internet Movie Database
http://www.tv.com/shows/house/ - House at TV.com