You can easily add in links to your social media profiles (if you want). Click 'my profile' in the sidebar, then scroll down until you see a button that says 'Add A Link'.
After you click that, you can add in as many social links as you want - and not just social media links either: you can also add in your Amazon Wishlist, any websites you own that you want your fans to see, and just about anything else you can think of.
When you've added your information in, click 'Add Link' to save your info. That's it!