In an extensive review of the book "The Gospel According to the Simpsons," which was released today, the LA times says that author Mark Pinsky only watched 150 episodes of the simpsons (out of 269), and got the rest of his info from the web. From the article: "He said the encyclopedic fan Web site, snpp.com, which stands for Springfield Nuclear Power Plant, Homer's place of work, was especially useful."
The full article is below: http://www.latimes.com/features/religion/la-000070810sep01.story?coll=la%2Dn ews%2Dreligion