A few recent links on bullying

http://psychcentral.com/news/2012/10/20/cyberbullying-rarely-sole-factor-in-teen-suicides/46407.html - most targets were being bullied both online and IRL.

http://www.smh.com.au/technology/technology-news/buckie-and-the-wrong-boy-the-worrying-line-between-cyber-sleuths-and-vigilantes-20121019-27vpb.html - a cautionary tale about cyberbullying's close relative, the righteous online dogpile.

http://www.netfamilynews.org/what-defeats-cyberbullying-viral-kindness - the dogpile's opposite.

ETA: http://xkcd.com/1124/ (particularly the mouseover)

( Some older links )