General resource for academic writers from the University of Manchester. http://www.phrasebank.manchester.ac.uk/

http://www.phrasebank.manchester.ac.uk/being-critical/

Agendaweb.org

Hundreds of activities for grammar, vocabulary, listening, and reading comprehension. Beginners, intermediate and advanced level ESL.

https://agendaweb.org/

Best Sites for ESL/EFL Handouts

http://larryferlazzo.edublogs.org/2009/02/18/the-best-sites-for-free-eslefl-hand-outs-worksheets/