VocabularySpellingCity.com

I think this site (which I am affiliated with) should be on every parents and teachers lists of sites to use with their kids!  Here's why:

Put any word list up on VocabularySpellingCity.com (for free!) and you get immediate access to use the words in engaging games such as Word Search, Word Unscramble, Hangman, and Handwriting Printables.

If you ante up for a $25 annual premium membership, you'll also get access to vocabulary tests, crossword puzzles, and Speedy Speller!

 Go to the teacher resources section and you'll find lists ready to use for an amazing set of idtems:

Analogies - New!
Capitonyms
Compound Words - New!
Contractions
Dolch - Sight Words
Geography Lists
Homophones, Homonyms, etc.
Literature Based Word Lists
Math Vocabulary - Most Popular!
Monthly Holiday Lists
Multiple Meaning Words - New!
Phonics & Sight Word Curriculum
Possessive Nouns
Sample Lists By Grade
Science Vocabulary - New!
Sequential Spelling Program
Sound Alike Words
Syllables - New!
Word Abbreviations