Upon looking at the following websites, I fond them both credible and interesting. Some of the signs that I looked for was a name of the author, a home page that links back to a more recognized organization, and good writing skills. The article about the teenage boy being locked in a closet for four years also has pictures and detailed information. It also had alternative links that could be accessed to find out more information on the story.
The article about body language gave real life examples which meant some research went behind the author was saying to be true. One could easily google body language and see if the information on this page held to be true on other websites.
http://www.examiner.com/x-1168-Crime-Examiner~y2009m9d28-Oklahoma-teen-says-he-was-starved-beaten-locked-in-closet-for-over-4-years
http://www.lifepositive.com/Mind/psychology/body-language/body-gestures.asp