BBC Bitesize English Activities - KS2: videos and games for Year 2 to Year 6 on reading, punctuation, grammar, spelling, sentence structure and more.
BBC Bitesize Literacy Activities - KS1
BBC iPlayer "School Radio": Animation games and videos
Britannica Kids Dictionary: Find definitions of new words.
Rhymes.com: a unique online dictionary that contains a huge collection of rhyme entries for almost any given word in English.
Google Translate: Learn other languages