Hooking up blog with social media

When I use the blog page, how do I add a link to social media like Facebook and discus?

Right now I am using the Lander Pro theme. However, I need the flexibility to change that, so I plan to use the RW blog plugin along with PlusKit. Should I do that I will likely use Armadillo at some point, IF I can wrap my head around getting it up on the server. But for now I just want to get the site up and running with a link from the blog that will allow people to discuss my posts.