This comes via Imaging Resource:
"More than a third of UK marketing, PR and publishing professionals (37%) admit to using images illegally from the Internet. A survey of UK creative professionals by Deutsche Telekom's online photo agency, Polylooks.co.uk, found that not only do a great many creative professionals use images from the Web without paying for the rights, but additionally, most do not understand the meaning of the terms 'royalty free' and 'rights managed'."
To be fair, this was based on a survey of only 200 people, but how do you call yourself a professional and not know how to obtain images legally? That's just pure laziness.