I used wordle.net a couple of times in the class this week. Kids loved it. It is good for spelling and using uppercase or lowercase letters. One of the students were writing the name of his classes and he was very careful using a capital letter for class names. I reminded another student to make sure that all Proper names (her name, cities, states, etc.) should always be written with a capital letter no matter where you write them. Great fun website! Especially randomizing your words and giving you a lot of choices for grouping the words in a different way are fun!