Despite its rather confusing interface, The Compleat Lexical Tutor, developed by Tom Cobb of Université du Québec à Montréal, provides very powerful tools that can help facilitate the process of learning and teaching English academic vocabulary.
Features:
• Tutorial section with online tools designed to test and build vocabulary as well as check grammar errors against corpus-based examples
• Research section containing an array of highly specialized programs that allow language instructors and researchers to analyze vocabulary and grammar
• Teachers' section consisting of handy applications with which teachers can create materials and activities to use in their classrooms
Site URL: http://www.lextutor.ca/