For almost two years now I have been contributing to iStock.  I signed up to exclusivity, but I am finding that after a promising start with week on week growth my sales fell off the edge of a cliff and have been struggling.  Fair enough.  My portfolio is largely beaches and travel based, and I generally dont take photos with people in them.  That obviously isn't a fit with iStock - and without people, probably not with stock generally.  However, before I stop contributing altogether, I thought I might give it a try elsewhere.  Can anyone recommend which of the other sites a portfolio like mine might fair better?  Here's a link to my portfolio....

http://www.istockphoto.com/user_view.php?id=2128170