I found this article in my wanderings
and I think it is pretty useful for those of us who want to be published in the time honoured fashion. (Check it out! I used a British spelling!)
Writer’s Digest. Sarah Foster’s article on tweaking your approach to Agents.
As an aside, a Literary Agent that I follow on Twitter recently mentioned that her agency has already processed 20,000 queries this year. I mention this, because that level of insanity is enough to give anyone pause about the workloads of the people we approach about our work. They deserve a little patience from us, no matter how excited/anxious/terrified we are about showing our work to “professionals”.