I've been given a premium membership to VocabularySpellingCity.com for a candid, personal, online review.
VocabularySpellingCity.com helps students study word lists using 25 different learning activities such as Vocabulary Test, Word UnScramble and Word Search. Parents can create their own spelling lists, find published lists already available on the site or use any of the dozens of free teaching resources such as compound words and math academic vocabulary.
Be sure to come back in three weeks to read about my experience. There might be more free memberships available for bloggers. If you're interested, find out how you can review VocabularySpellingCity.com.
Update: Please see review on our "Curriculum" page: