BigDoggy's Scrabble Strategy Hints: Provides articles on becoming a better player.
Eric Harshbarger's Scrabble Challenges: Provides Scrabble challenges for advanced players.
Hasbro Scrabble: Includes an anagram builder, a dictionary, and links to various Scrabble related sites.
Mattel Scrabble: Three Shockwave games: Scrabble Hangman, Scrabble Invaders and Scrabble Snake.
San Jose Scrabble Club: Contains FAQ, word lists, dictionary links, and a WAP site for looking up words.
The Scrabble Rack: Offers wordlists for two and three letter words, a word finder and a word checker.