Posts under category Facebook Infrastructure & Reliability

Does anyone have any idea who to contact about the Facebook link preview crawler (user agent http://www.facebook.com/externalhit_uatext.php)? It's constantly making requests to our site in what seems to be a loop of sorts. Things have gotten bad enough that I've had to rate limit it! At the rate things are going, I'm sure it's blocking legitimate requests for previews of links on our site.