I read and I practice them in chats etc..
Here some site where I can find some phrasal verbs and other words not so
usual in English schools, I may also go to ESL sites and others.
There are books in the market too.
Here goes the sites: (beware, they are a bit slangy, so you have to be careful not to talk slang too when talking to more educated people!)
Hope it helps.
http://www.wired.com/magazine/19-08 (if you like gadgets and thechnology!)
(Cartoon about about life in the office)