Facebook, Twitter, Google+, LinkedIn and many similar media like you to include a self picture in your profile. Usually a head & shoulders shot will do, but the poses, style and lighting are, of course, completely up to you.
Social-media photo sessions cost just £35. This includes the sitting (indoors or outside), and up to 10 pictures selected from the shoot. I will carry out any necessary post-production work on the photos, and resize them, prior to e-mailing them to you.