ImTranslator translates selected text, words (Dictionary), phrases and webpages between more than 100 languages
Read Aloud is a Chrome and Firefox extension that uses text-to-speech technology to convert webpage text to audio.
Grammarly is a writing assistant that goes deeper than grammar to offer you comprehensive writing feedback.
Agenda Web - practice grammar, vocabulary, reading and more!
English Page - advance grammar practice
Vocabulary - practice vocabulary with online games
English Media Lab - grammar, interative listening, and more
ManyThings - quizzes, word games, puzzles, and a random sentence generator
Bab.la - site for ELL learners with reference tools like dictionaries and vocabulary, supplemented by quizzes, games, and online forum
ESL Basics - free English videos for students and a great resource list
BBC Learning English - grammar, vocabulary, pronunciation, and current events
Idiom Site - definitions of common idioms
English Grammar - English grammar online
Learning Chocolate - vocabulary learning platform
Train Your Accent - conversational practice
ESL Listening Lab - listening quizzes
Fast Typing - learn how to type quickly with free online typing lessons