1. Article 29 Working Party, Opinion 4/2007 on the concept of personal data, WP136, 20 June 2007, http://ec.europa.eu/justice_home/fsj/privacy/docs/wpdocs/2007/wp136_en.pdf. Accessed 15 July 2007.
2. Article 29 Working Party, Work Programme 2008–2009 of the Article 29 Working Party, WP146, 18 February 2008. http://ec.europa.eu/justice_home/fsj/privacy/workinggroup/wpdocs/2008_en.htm. Accessed 15 April 2009.
3. Belgian Privacy Commission, Recommendation 02/2007 of 28 November 2007 concerning the diffusion of photographic material. www.privacycommision.be.
4. Boyd D. Friendster and Publicly Articulated Social Networks, in Conference on Human Factors and Computing Systems (CHI 2004), Vienna, ACM, April 24–29, 2004. http://www.danah.org/papers/CHI2004Friendster.pdf. Accessed 10 April 2009.
5. Brimsted K. The JK rowling photo case–are privacy rights evolving for the online era? CLSR. 2008;24:465–8.