If you're wrestling with any questions about how to price your photos for use either through some of the lower end stock houses, or if your buddy who runs a multibillion dollar business but wants to use one of your photos on the cover of his brochure for free... This is a good place to look. http://photographersindex.com/stockprice.htm Please, by all means, share your experience too. It only gets better with use as we all use it. Noticed that there's been an ongoing downward trend, which is consistent with what I'm hearing from friends who've been in the business for decades. Perhaps in the future most photographers will be part timers.