Simple Social Icons has been added to your Top Bar Left Widget (Dashboard > Appearance > Widgets). You will need to add in links to your own social media accounts.
The Genesis eNews Extended plugin has been added to Footer Two. You will need to connect that to a third party service such as Feedburner, or Mail Chimp.
The Genesis User Profile has been added to Footer One. That uses an image from a Gravatar Account. You can get one for free at gravatar.com. You can update the “blurb”, and connect it to any page on your site. Right now, it is connected to your “About” Page.
Please let me know if you have any questions!