BubbaBrain- interactive vocabulary practice for elementary, middle, high school and college levels
Flashcard Stash- registered teachers create vocab flashcards and can share with their students
Free Rice- each correct answer generates a donation of 10 grains of rice through the World Food Programme.
Graph Words- online visual thesaurus
Knoword- helps boost vocabulary and spelling
Learning Chocolate- vocabulary learning platform includes a huge array of interactive lessons
Learning Vocabulary Fun-vocabulary games, English vocabulary word games, including Slang Game, Hang Mouse and Letter Games
MyVocabulary.com- root word lesson plans, puzzles, word lists and SAT/ACT test prep
PBS Kids Vocabulary Games- from Radio Martha to the Great Word Quest, a nice listing here
Professor Word- add the bookmarklet to Chrome, Firefox, IE or Safari and when reading a webpage; SAT and ACT words will be identified; can also give the definition to any words on the page which are not understood
Spelling City- teachers can save vocab lists, learning activities and games
VocabAhead- SAT and ACT vocabulary building
VocabGrabber- "VocabGrabber analyzes any text you're interested in, generating lists of the most useful vocabulary words and showing you how those words are used in context."
VocabSushi- " VocabSushi provides thousands of sentences that demonstrate any vocab word's contemporary usage in news articles."
Vocabulary Worksheets- from the Lesson Corner
Vocabulary Worksheets and Printables- filter by grade level
Wordia- includes videos of students and teachers explaining the meanings of certain words, many games
