http://www.oup.com/elt/global/products/headway/
http://www.oup.com/elt/global/products/headway/int/
http://www.englishgrammar.org/
http://www.english-the-easy-way.com/index.htm
http://www.usingenglish.com/handouts/
http://esl.about.com/od/englishreadingskills/English_Reading_ Comprehension_Skills_for_ESL_EFL_Learners.htm