1) Buffer: You can share content and schedule posts via Twitter, Facebook,
LinkedIn and Google +. It also allows you to schedule ahead of time and
provides analytics about engagement from your posts.
2) HootSuite: Same as Buffer, but comes with a cost.
3) EveryPost: Allows you to post all of your updates at one time. Simply write
your message, add photos or videos, and hashtags then send them to Twitter,
Google+, Pinterest, Facebook, LinkedIn, Tumblr or email.