Art is meant to be shared, so please share away! You are free to use, print, remix, put it on your blog or a poster, so long as you don't make money from it, and you release it with the same freedoms and restirctions. If possible, attach the words "Photo by Travis Poling. CreativeCommons BY-NC-SA 3.0" For more info, see the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
If you decide to use an image for public purposes (other than casual sharing with friends), please contact me so I can keep track of where my work goes.