You will find a lot of sites I came across, while skimming scanning the Internet for usefull sites. If you know more usefull links, please contact me
http://www.bbc.co.uk/skillswise/words/grammar/ grammar, spelling, reading, writing, listening and vocabulary
http://www.global-english.com/ on-line TESOL cources or just go on a UK weekend city cource,
http://www.iatefl.org/ just read, click and learn
http://www.englishstudydirect.com/index.htm just check it out
http://www.saywhatesl.com/ lessons, writing practice, articles, quizzes, school links, games, dictionaries and resources
http://www.english-at-home.com/ grammar and tenses, speaking, vocabulary, idioms, English reading, real life English and more
http://owl.english.purdue.edu/handouts/grammar/ Grammar. punctuation, spelling and exercises
http://engels.jouwpagina.nl/ a starting-page full of ideas
http://www.freebooknotes.com/making-language-arts-fun-an-online-guide/ “Making Language Arts Fun: An Online Guide” –
http://blog.asha.org/2012/06/07/making-the-most-of-summer-fun-language-based-activities-for-children-their-families/ "Making the Most of Summer Fun: Language-Based Activities for Children and Their Families" -