Different from a dictionary or from encyclopedia because the images replace the words. Where words are defined as pictures, for learning the exact names of objects.

http://www.infovisual.info/

Learn english with this english speaking tutorial written by a native english speaker.

http://www.englishsubject.net/

Search online for word definitions and meanings, also a free scrabble word anagram tool to find all the words from your scrabble hand.

http://www.drwords.com

NOVIK - English courses in the UK. General English, Business English, English courses for professionals and executives, English for Academic purposes, accredited by the British Council

http://www.englishmax.net/

Used Pimsleur provides new and used language courses for learning more than 100 foreign languages.

http://www.usedpimsleur.com