In the past I have invited readers to submit their query letters so I can delicately pick through them to give feedback. This feedback is published on the blog, along with the query letter. So, in a way, it's advance advertising for your manuscript (unless your query letter is no good, in which case you may wish to hang your head in shame).
Now, even though the last two weeks before Christmas are by no means slow in agent land - what with the frantic reading of all the submissions that have banked up over the past few
I'll take the first ten letters by email. There is no prize other than me giving you feedback.