Prepositions

• http://www.eslflow.com/prepositionlessonplans.html
• http://esl.about.com/library/grammar/blgr_prep1.htm
• http://a4esl.org/q/h/fb-bd-preposition.html

Parts of Speech, Sentence Structure, Adverbs, Word Endings

• http://1-language.com/eslquizzes/index.htm

Grammar, Idiom & Slang Phrases, Reading, Useful Expressions, Vocabulary

• http://a4esl.org/

Interactive Quizzes on All Parts of Speech

• http://www.usingenglish.com/quizzes/

General Grammar

• http://grammar.ccc.commnet.edu/grammar/
• http://www.usingenglish.com/glossary.html
• http://www.englishclub.com/grammar/parts-of-speech.htm

Articles

• http://a4esl.org/q/h/grammar.html

Verbs, Auxiliaries, and Verbal Phrases

• http://www.churchillhouse.com/english/exercises/phrasals/
• http://grammar.ccc.commnet.edu/grammar/verbs.htm

General Writing

• http://grammar.ccc.commnet.edu/grammar/
• http://www.1-language.com/writingprompts.php

Paragraphs

• http://www.lclark.edu/~krauss/toppicks/writing.html

Essay writing

• http://members.tripod.com/~lklivingston/essay/index.html

Short Stories, Poetry, Vocabulary

• https://www.englishclub.com/learn-english.htm

World Fact Book (short reading passages, world flags etc.)

• http://1-language.com/worldfactbook2002/docs/flagsoftheworld.html

Reading Comprehension

• http://www.lclark.edu/~krauss/toppicks/reading.html

Beginners to Intermediate

• http://www.rhlschool.com/reading.htm

News Reports - All Levels

• http://1-language.com/eslnews/index.htm

Short Reading Questions and Answers (various topics)

• http://eslpartyland.com/students/inter.htm (Intermediate Level)
• http://literacynet.org/cnnsf/archives.html (Advanced)

Conversations/Speaking/Listening

• http://www.englishclub.com/pronunciation/index.htm
• http://edition.englishclub.com/listening-news/20110201/
• http://www.esl-lab.com/

• http://www.lclark.edu/~krauss/toppicks/vocabulary.html
• http://www.manythings.org/e/patterns.html

Word Searches

• http://1-language.com/wordsearch/index.htm

Idioms

• http://eslcafe.com/idioms/
• http://eslcafe.com/slang/

TOEFL

• http://www.eslpartyland.com/quiz-center/quiz.htm#TOEFLesque
• http://www.talkenglish.com/
• http://www.rong-chang.com/listen.htm
• http://www.englishpond.com/speaking/index.html
• http://www.rong-chang.com/
• http://www.eslfast.com/robot/

Medical English

• http://www.englishmed.com/

Business English

• http://www.better-english.com/exerciselist.html
• http://www.bbc.co.uk/worldservice/learningenglish/grammar/index.shtml
• http://www.bbc.co.uk/worldservice/learningenglish/business/index.shtml