I prefer this list to the one in The Telegraph a while back. Links on the author's name take you to the Times's page about the author (which gives a suggestion as to which book to try); bibliographies are linked to their Euro Crime page:
Check out a few responses to the Times article on Crime Scraps, Petrona and Mysteries in Paradise.
I've only sampled a measly 21 of these authors (and 20 off The Telegraph selection). I'm very surprised double Dagger winner Vargas isn't on the list.