For many years I have been augmenting my retirement income with microstock sales. I have noticed every now and then that people on RFF will ask if it is practical to use their photography to add to their income, possibly to help finance their hobby. Here is the most honest and comprehensive article I have read recently that should answer that question:
http://www.johnlund.com/2010/03/jim-...-of-stock.html
For some time, I have thought that stock photography, like music and writing, was going to diminish as electronic media keep driving the prices for arts-based services down and down. Jim Pickerell seems to agree.