How to use one profile picuture across multiple website once

How to use one profile picuture across multiple  website once. I thought  my picture on all my social media networks would save a lot of time, Wouldn’t it be nice if I could update my photo in one place and have it updated everywhere? I think so, and the folks at Gravatar agree. They’ve created a central repository where you can upload photos of yourself.

Then any social network or other website that uses Gravatar doesn’t need to ask you to upload a photo. They can look at the email address you used to sign up and pull the image straight from Gravatar. So when you update your Gravatar photo, it automatically updates your photo on every site that uses Gravatar. Makes life a lot easier.We are blogger ,so we need to have a lot of SNS accuants to promote our blog,