There are times when you might want to make a picture or photo uploaded by you on facebook, so that all the people including those who are not your friends on facebook can view it at least, recently I found the cool option facebook has started providing which allows you to share a pubic link which you can send to people so that they can easily view it.
You can do this only with the photos you have uploaded on your facebook profile, here is how you can find the public link which is shown at the bottom of the comments on the facebook page.
1. Login to your facebook profile, and go to the facebook page of the photo
2. Scroll down, just below the comments you will see the link which you can copy and paste to send to your non facebook friends or other people who are not your friends on facebook so that they can view the photo on facebook page with this direct link to the photo.