My current stock representative is Dreamstime.  To see my full portfolio click this link http://www.dreamstime.com/Littlemacproductions_info . 

If you are interested in selling your own photography click this link:  http://www.dreamstime.com/resp105246 Here are some instructions once your arrive at Dreamstime:

Click the tab Contributors area and then Sell Your Images.  Find Register page on the right hand side of the page.  Follow the instructions and you are on your way!