Most of the sites don't deal in pictures only but videos as that is the high bandwidth and high advertising their budget allows for
Anybody got paid by Imageporter or Imagetwist? Only 1 and 5 bucks minimal. Should be easy to achieve.
I used all of them and for me the one that pays the most is imagehyper Imageporter and imagetwist use a downloadable script that anybody can use, which means they're run by a single kid or so...something I don't like Imagehyper and others (picfoco, imageban etc) use custom scripts and custom firefox extensions, which means there's a team or at least an company behind them