There's still one top and one 2nd from the top spot available in May, as well as 3rd from the top spots ($700, $600, $500 respectively).  Prospective advertisers can click on the "public stats" link (bottom of the left hand sidebar) to see the volume of traffic here, which has been averaging over 10,000 visits per day, and nearly 15,000 page views per day.  I noticed, for example, that the APA blog is asking $750 for top ad spots, which is extraordinary given that I don't have the impression many people are reading it–in any case, the APA blog has no public traffic statistics, so caveat emptor.

I'll be doing less blogging in the summer, so will be offering reduced rates:  $300 for the top, $250 for a 2nd, $200 for a 3rd.  Some spots have already been reserved for the summer (and one for September even), but there is at least one top spot still available each month going forward.  Contact me at bleiter-at-uchicago-dot-edu to reserve advertising.