Here are more helpful links:
http://www.ehow.com/list_7421344_tips-effective-communication-teenagers.html
http://www.theprovince.com/life/good+listener+teens+will+talk/3754395/story.html
http://choose4me.com/3-effective-tips-for-parenting-teenagers/
http://www.zchand.com/64/importance-of-communication-between-parents-and-their-teens-2
http://parenthelp.biz/typical-communication-mistakes-parents-make/