What are some good Scrabble word generators?

Scrabble Word Builder, Scrabble Word Maker and Word Grabber all offer free online word generators for games like Scrabble, Words with Friends and Word Feud. These tools are capable of computing the highest possible scoring word from a given set of letters, or they can just generate different words.

Scrabble Word Maker allows users to enter the letters from their rack, including blank tiles, and generates a list of possible words from that input. The tool also lets users sort the results alphabetically, by word length or by point value. Word Grabber and Scrabble Word Builder offer similar functions and also have tools for Word with Friends.