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How to Add Verified Services to Your Gravatar Profile
Your Gravatar profile can include links to other social services you use online, such as YouTube and Facebook. Gravatar will verify your account information with these services to ensure they are your accounts. To do this:
Log in to your Gravatar account.
Click on My Account, then Edit My Profile.
Click on Verified Services to the left. You can shortcut to this by clicking here.
Select a service from the drop-down menu and click Add.
You will be directed to that service’s authentication page so you can give Gravatar permission to link your accounts.
Each service you’ve verified will appear on your public Gravatar profile. If you would like to remove any service you have previously added, you can do so by clicking on the "X" icon that appears to the right of each service in the Edit My Profile screen.