We all know that content is king. However, content with images is like a world-leader, sitting on a throne of viral content.
Images are critical to content, but it’s important to make sure they’rethe right size for where you’re sharing. Surepayroll.com has created an infographic entitled "Optimal Image Sizes to Share on Social Media Cheat Sheet", giving you an easy run-down of the best image sizes to share on social media.
Content with images and pictures is shared exponentially more than content without pictures – however, you need to make sure your image fits the site you’re sharing it on.
This infographic covers image recommendations for sites such as Facebook, Google +, Instagram, Twitter, and many more.

Source: Visual.ly