These articles offer tips for how to talk to your teen:
http://www.hopeforsocialanxiety.com/parenting-a-teenager.html
http://ccef.org/communicate-teens
http://radioalice.radio.com/2010/07/14/questions-to-avoid-asking-teenagers/
http://www.daijiworld.com/chan/tipsforlife_arch.asp?tips_id=55
http://ezinearticles.com/?Rules-of-Communication-With-Teenagers&id=4174305