Three links to improve your English "Writing"

1. (The Purdue OWL)---> The most well-organized one
http://owl.english.purdue.edu/

2. (English campus)---> A good Hong Kong English learning website
http://www.hkedcity.net/english/practise/writing/index.phtml?section=ex

3. (Slang dictionary) ---> You can refer to this website to know more
deeper meaning of English slang
http://www.peevish.co.uk/slang/p.htm