You can change your display name, blog name, and username in your Account Settings. When you're logged in, click on the User Menu at the top right of any Kinja page, choose Your Profile and then Edit Profile, where you will find your Account Settings.
Display name: your unique identifier across Kinja which displays on all of your post's bylines, including posts to your personal blog and replies posted in discussions on other blogs.
Username: your blog's URL. For example yourusername.kinja.com.
Blog URL: the name that appears on your blog's header, only visible on your personal blog page, at yourusername.kinja.com.
Connected Accounts: The social media accounts connected with your Kinja Account. The ones that are checked are the ones you can use to log into Kinja. Burner accounts will not see this option.
Profile Picture: Here is the avatar that will be seen all across Kinja.