1. Adee , Sally 2011 “ Keeping Up E-ppearances ”, New Scientist , 23 February , http://www.newscientist.com/article/mg20928001.600-keeping-up-eppearances-how-to-bury-your-digital-dirt.html?page=1, accessed 18 November 2011 .
2. Cain , Jerry 2011 “ Adding New Features to Comments Box ”, 12 April , http://developers.facebook.com/blog/post/490/, accessed 1 June 2011 .