I may not have agreed with all his politics but his investigative journalism work and his writings were always of a high quality. I know some called him a champagne socialist, and others thought he was the very embodiment of middle-class socialist angst, but his incisive work into some of the most important issues fo the day should be what he is remembered for. He showed that if you care enough and are persistent enough, your message will get through.

Read more at the BBC:
 http://news.bbc.co.uk/1/hi/uk/3905493.stm

or at the Guardian:
 http://media.guardian.co.uk/site/story/0,14173,1264371,00.html

And no doubt, many other places in the near future.