Some new links with helpful perspective and tips:
http://fathergeek.com/high-five/five-strategies-for-improving-communication-with-your-teen/
http://www.compassroseacademy.org/tag/parent-teen-communication/
http://picforparents.areavoices.com/2012/08/06/communicating-with-your-teenager/
http://www.huffingtonpost.com/michelle-lamar/parenting-teenagers_b_1762723.html
http://voices.yahoo.com/5-strategies-communicating-teenagers-11661584.html
http://jenniferhansen.com.au/tag/communicating-with-teenagers/
http://effectivecommunicationadvice.com/problems-with-teenagers
http://www.wwlp.com/dpp/mass_appeal/family/tips-for-communicating-better-with-your-teens
http://www.herbsandcures.com/blog/2012/09/19/how-to-communicate-with-your-teen/
Most runaways cite lack of communication as a factor:
http://english.chosun.com/site/data/html_dir/2012/08/15/2012081500420.html