1. Health Protection Agency Statistics (HIV and STI) http://www.hpa.org.uk/webw/HPAweb&Page&HPAwebAutoListName/Page/1191942172144?p=1191942172144
2. ScienceDaily One in four teenage girls in US has sexually transmitted disease, CDC Study Shows ScienceDaily 12 March 2008 http://www.sciencedaily.com/releases/2008/03/080312084645.htm
3. BBC Many over-50s ‘run risk of STI’ BBC News 31 January 2008 http://news.bbc.co.uk/1/hi/health/7217216.stm
4. IBM Five innovations that will change the way we live over the next 5 years IDEAS from IBM 9 January 2007 http://www.ibm.com/ibm/ideasfromibm/us/five_in_five/010807/images/Fiveinnov_010807.pdf
5. Gartner Gartner says 80 per cent of active Internet users will have a ‘Second Life’ in the Virtual World by the end of 2011 Gartner Press Release 24 April 2007 http://www.gartner.com/it/page.jsp?id=503861