Kit Whitfield, already responsible for the best writing laugh I've had in ages, here
http://www.kitwhitfield.com/lexicon.html
has now constructed a guide to how not to write a query letter, conceived as equivalent to chatting up a stranger. Brilliantly funny, excellent advice
http://www.kitwhitfield.com/publisherdating.html
KW is an editor turned novelist, so knows what it's like both sides of the game. (Is that the equivalent, in dating, of having a sex change do you suppose?)
Emma
<Added>PS Oops! Failed to credit Miss Snark's blog for alerting me to this latest pearl from KW's lips.