Photo Sharing is sharing or publishing photos online.
The limitation of sharing the picture is to be not more than 20 Mb.
A Google photo is a pre-installed app using in the android mobile.
Probably is the safest photography website in the world to share photos.
Flickr is the most popular and oldest photo sharing sites in the world by Yahoo.
Again the website gets introduced with the updates of unlimited photo uploads will be possible for the pro account user else the free accounts stores only the limit of 1000 photo.