SpellingCity.com

This site enables you to create word lists you want your students to learn and to provide sentences in which you want the students to be able to use these words. The quiz generator creates different types of activities with using them (hangmouse, unscrable, missing letters,crosswords, wordsearch, whole word spelling; matching words to the sentences and unscramble sentences). Words and sentences are read (often by a computer program, which makes them sound strange). The main disadvantage for primary school ESL teachers, however, is the impossibility to use images in these activities. Another disadvantage is that you can't embed these activities in your site, apparently.