I'm relatively new to stock. I've done a bunch of digging around though at many sites, industry analysis, etc. I came across this interesting article, that argues that the licensing market is actually much greater than anyone ever though of: http://www.danheller.com/blog/posts/total-size-of-licensing-market.html. It argues that the licensing market could be as large as 20 billion dollars if a company just accepted most photographers that tried to sell. I tried to sell at several agencies and was rejected. While I know that some of my work is not that great, I think it does hold some commercial value. Does anyone think that if a large social network company like Flickr made a marketplace, that they could make a billion plus dollar company, by just accepting everyone?