Daves ESL Cafe - Find books, chat, discussion forums, ESL exercises, ideas, and more.

http://a4esl.org/ - Find bilingual quizzes and vocabulary exercises with easy pictures.

http://www.gettoefl.com/practice.htm - Free TOEFL practice exercises.

http://iteslj.org/links/ESL/Quizzes/ - This is a sub-page of The Internet TESL Journal's TESL/TEFL/TESOL/ESL/EFL/ESOL Links

http://esl.miningco.com/msub6.htm

http://www.teachers-pet.org/ -  Free tools for creative teachers