While a paid service, this site provides flash cards and lessons that could be invaluable to ESL teachers.

Geared towards beginners, this site has flash cards for the alphabet, phonics, grammar, and vocabulary.

A large number of flashcard sets for every occasion, from seasonal and holiday vocabulary to foods and sports. For beginners.

Flashcards to teach basic actions, greetings and goodbyes, objects, animals, weather, time, and many other topics.

With a variety of worksheets, powerpoints, activities, video lessons and more, this website is an excellent, free digital resource.

This site provides a variety of timers that can be used for games and activities in the classroom.

With games and activities for many levels and skills, this site is a useful resource. Aimed at Kinder through grade 8 primarily.

A broad variety of flash game types for grades 1 through 8, for a change of pace when students get bored of playing on the blackboard.

This website offers a variety of resources for free, mostly centered around beginner to mid-level students. Huge selection of games, worksheets and more!

Crosswords, word searches, flash cards, quizzes, worksheets, certificates, and more! A treasure trove of content for designing lessons, with a great deal of seasonal material.

Thousands of worksheets and lesson plans, searchable alphabetically or by the skill you wish to practice. Handy if you need a worksheet in a pinch!

Primarily through mailing lists, you can get access to dozens if not hundreds of worksheets and lesson ideas, for students of every level.

Worksheets, lesson plans, materials and activities for beginner to intermediate levels.

Simple, printable, pdf worksheets to practice spelling and phonics for common nouns and verbs. Students can color the worksheets. Site also contains an audio portion so students can hear the words being said.

These downloadable and printable worksheets can be used as warm-up activities, parts of a lesson, or homework assignments. They are mostly vocabulary practice, but can be incorporated into almost any lesson.

Great collection of worksheets and activities from ESL teachers around the world. Mainly aimed at lower- or mid- level students.

Links to a wide variety of activities, templates, and exercises on many different ESL topics, including articles for teachers and information on business and other specialized English.

With a variety of worksheets on offer and links to affiliates with additional offerings, this site is a useful resource for teachers seeking inspiration.

Worksheets and games to teach vocabulary for everything from Actions to Weather. Primarily aimed at children, but the worksheets can be adapted to any age.

Printable exercises and worksheets for use in ESL grammar classes. Topics include parts of speech, tenses, as well as modals and conditionals.

Vocabulary worksheets on topics ranging from Action Verbs to Weather and Seasons. Each topic contains handouts and puzzles to study and reinforce vocabulary.

A wide variety of customizable and printable worksheets for use in any classroom. Spelling tests, vocabulary lists, and grammar quizzes and worksheets can be easily created on this site. A very handy site for teachers looking to create lesson activities, quizzes, or games for use in an ESL classroom.

From Adjectives to Voice, the Daily Grammar Glossary gives definitions of some of the most common grammatical terms. A useful resource for students and teachers alike.

This site provides links to a vast collection of audio files, with varying difficulty and about a variety of topics. Speed can be adjusted as well, making this a very useful tool.

A free Dutch English learning resource, with grammar and vocabulary resources, and sample tests.

Rules, hints, tips and examples for all sorts of elements of written English. A rich resource for anyone learning how to write, from beginner to advanced.

This website will put any word into a sentence, a brilliant way to help ESL learners grasp new vocabulary and grammar.

With a huge variety of vocabulary and grammar prompts, this site can suggest tons of new material to cover during lessons.

A handy starting point for ESL students. This page has daily quizzes, vocabulary, slang, listening, and pronunciation practice.

Generates a random vocabulary word with each touch of the button. If students don't understand a word, they can click on one of the dictionary links on the sidebar. Teachers can recommend a particular dictionary to suit their class, such as WordSmyth for Children.

A quick source of quiz questions for testing intermediate-level grammar, to be used either by students or in tests.

With a vast array of different audio and visual resources, this is a perfect resource for a tech-savvy teacher wanting to incorporate multimedia into the ESL classroom.

Online games to practice grammar and vocabulary, useful for students and teachers alike.

A variety of online grammar and vocabulary quizzes as well as podcasts and YouTube links to audio and video lessons for ESL students.

Students read a passage and select the appropriate preposition or phrasal verb from a drop down list. The reading level required for the activities varies from intermediate to advanced.

A flexible site that allows you to create your own study materials, including quizzes and flash cards.

A great resource for those in need of quizzes, catering to many levels and topics.

Drawn from a database of over 3000 questions, each quiz asks students 20 multiple-choice questions where they must insert appropriate vocabulary to create grammatically correct sentences.

The entire syllabus for Cambridge, a widely used publisher of ESL course materials. A useful reference for any teaching using (or thinking of using) their materials.

Hundreds of conversation questions to prompt students in class. Virtually any topic that comes to mind, geared towards beginner or intermediate students.

Although not specifically an ESL website, it provides a collection of short and easy to read articles that are great for use in class.