Login your youtube account – click “account name” – click “my channel”- now go to top right corner of the banner and click the “links” button – now click “Edit Links” - Now two sections appear custom links and social links.
Add your custom links title and urls. Add you social links like fb, tw, g+ links in social links section. When you added links successfully click “Done” button to accomplish the job.
Now you could see the custom links and social links in your youtube channel.
