This is something which concerns me - the whole issue of drug companies giving doctors money for "educational" purposes worries me.

It has recently attracted some attention here as well; http://www.smh.com.au/national/healt...29-gnsy45.html.

Bad Pharma by Ben Goldacre (he is a medical doctor who works under the NHS in the UK) explains many of the tricks which drug companies use. His Bad Science is also worth a read.