There are numerous resources dedicated to winning at word games. Below is only a small sample.
Both of the following programs are freely available online, and are dedicated to advancing your ability at Scrabble. Zyzzyva does require a membership in the North American Scrabble Players Association, however, to use the Scrabble dictionary.
Most of the serious printed literature is aimed at the Scrabble® market. While the board is different, and the word lists are not 100% interchangeable, they are directionally similar.
The words in our dictionary are meant to match, as closely as possible, the words used in Words With Friends®. We have no affiliation with Words With Friends, and offer this site for entertainment purposes only.