Useful Grammar Links Menu
Guide to Grammar and Writing - Interactive Quizzes (All grammar structures at many levels)
http://grammar.ccc.commnet.edu/grammar/quiz_list.htm
Activities for ESL Students (Grammar structures at many levels)
eflnet - ESL/EFL Resources
http://www.eflnet.com/index.htm
Karen's ESL Partyland
http://www.eslpartyland.com/quiz%20center/quiz.htm#Grammar
English Language Center Study Zone
http://web2.uvcs.uvic.ca/elc/studyzone/index.htm
GrammarCheck
http://smccd.net/accounts/sevas/esl/gramcheck
English Exercises Online!
http://wwwedu.ge.ch/cptic/prospective/projets/anglais/exercises/welcome.html#int
ESL Blue
http://ww2.college-em.qc.ca/prof/epritchard/trouindx.htm
English as a Second Language
http://academic.cuesta.edu/ahalderma/ESL.htm
Using English.com
http://www.usingenglish.com/quizzes/
English Learner.com
http://www.englishlearner.com/tests/tests.html