Cool. Cartoons meet stock photos. The problem I'm seeing is that some cartoons sometimes are tightly coupled to a specific topic, and may be seasonal. Especially current events/politically/socially related cartoons and satire. IMHO.
Great point, and I'm dealing with that issue by bringing more cartoonists onboard (tapping into their unpublished cartoons). I'm looking to double the inventory within a month and then 10x it after that... I want 90% of keyword searches to result in at least 5 cartoons.