http://www.spellingcity.com/

Here's a simple but useful site that can help students practice spelling. You can enter a list of spelling words and then go into "teaching" mode -- where a human voice will pronounce and spell a word and use it in a sentence. Or, gain more familiarity with the words by playing a couple of simple games. You can also tap into pre-prepared word lists grouped by grade level and sorted alphabetically. More word games are promised, and you can ask questions of the creators and suggest new features through a discussion forum.

This information was shared with us by Dr. Robert Evans