I usually take a bunch of photos on whatever group ride I'm on.  The ones I take on GDB club rides are on the photo section of the club website.  
 
http://www.greaterdallasbicyclists.com/gallery/index.php
 
Richardson Bike Mart recently started a monthly email newsletter, and they sent out a request for photo submissions -- I sent in a dozen random shots, and they used one of them in the February issue -- and I got a $50 gift cert for it!     Does that make me a professional photographer?