After reading this article on how to take a good headshot, I finally had the chance to sit down and snap some professional looking profile pictures of my own. I found this article to be extremely helpful and the process super easy. All you need is a good camera (with flash), a backdrop, a tripod, and a remote or self timer. Post processing doesn't have to be difficult either. I like to use free online photo editing services like picmonkey. Not only does it allow me to do basic photo editing but I can subtly touch up my face with a little blush boost and lip tint. Here's how mine turned out:
Most importantly, don't forget to have fun while your taking your photograph, it will allow you to loosen up and pose more naturally. Good luck!