The hand out for the class is here (for awhile anyway!--if the link doesn't work, email me and I'll send you a PDF)
You'll notice item #10: Correct form for email querying.
Your contact info is at the bottom.
Your contact info can be all of these:
And before you send your first query, take a look at your blog, your website, your Facebook page and/or your Twitter feed to see what an agent skulking around will see.
Posting your rejections with comments? Not a good idea.
Posting your anguished rants on the vagaries of the publishing industry? Not a good idea.
Posting your work? Do you want me to read it? I will if it's there.
The other thing you'd be VERY smart to do is have another set of eyes take a look. If you've got spelling errors and homonyms, run on sentences or sentences that don't make sense, you want to edit those BEFORE I get your query.
Even the most careful writer will find errant words and phrases have crept in to their online writing.
And it never hurts to post a picture of your pet.