One reason it's a good idea to belong to the AAR if you're an agent, aside from it being the ultimate stamp of legitimacy, is you get to go to AAR meetings. They're hit-or-miss, but there's usually drinks.
The last couple have been either about e-Books or social media outlets for authors like Facebook, Foursquare, etc. They basically boil down to this:
Social Media Presenter: This program is totally awesome and unless your author is a complete shut-in, incapable of communicating with the outside world, they have to have it YESTERDAY. Let's look at some totally cool statistics about user traffic!
Agent: ... How does this translate into sales?
Social Media Presenter: Funny you should ask that! I have no idea! But if your author doesn't do it it's definitely lost sales, right? So they should do it. They should spend way too much time on it, if anything. By the way, as an employee of this company or someone who's hired by authors to do this sort of thing for them, I have no stake whatsover in what I'm talking about!
Man, I have so many authors as friends on my author account on Facebook. They all make irrelevant posts and I tune them out. That's why I rarely post; I don't want to be tuned out. I don't really want to know about their cats or that they like the group "Reading" or that they just got out of a mental institution, which might be why they post "I AM THE SECOND COMING OF CHRIST THE SAVIOR" roughly once every ten minutes, in caps, and sometimes with a long exposition. Dude, I am starting to not believe you are a legitimately published poet who has won many awards.
Authors: If you make a page specifically for your writing and author information, please stop posting meaningless crap I will instinctively tune out. Post about, I don't know, your writing. I must have some interest in it - I friended you. That or we're both on Farmville.