Memes As A Service http://maas.rohits.me/
The example linked at the top works, but when I try to construct one, I get a "We're sorry, but something went wrong." error. For instance: http://maas.rohits.me/boromir/One%20does%20not%20simply/serv...
How much traffic does it cost? If you put ads on it to pay for the traffic, and added some usage statistics and "top N served" (by traffic and by unique referrer) to get people to browse the site directly, you could probably keep it going pretty easily. It'd be handy.
Also, have you considered directly serving the image in response to the request? That way, people could use your URLs directly in the img tags rather than the imgur URLs, which would let you get the traffic statistics for the images, and promote the use of your service.