The UK 2010 Gambling Prevalence Study (GPS), published on 15 February, has shown that there are many different types of attitudes and behaviours towards gambling. What an ‘online gambler’ is in reality is difficult to ascertain as many factors need to be taken into account. Heather Wardle, Researcher at the National Centre for Social Research, and Mark Griffiths, Professor at Nottingham Trent University - who both coauthored the 2010 GPS - analyse the different types of behaviour in the sphere of ‘online gambling’