There's been plenty of debate over the past couple of years about the merits of Wikipedia, generally focusing on how "trustworthy" the site is because of its anonymous contributors and lack of professional editorial review.
A month ago, the military banned MySpace but not Facebook. This was a very interesting move because the division in the military reflects the division in high schools. Soldiers are on MySpace; officers are on Facebook.
E. Bagiella, T. Karamlou, H. Chang, and J. Spivack. The Journal of thoracic and cardiovascular surgery, 150 (4):
779-82(October 2015)Variables instrumentals; Introductori; CV.