2016 Social Media Image Sizes Cheat Sheet
This is a great resource for making sure you're using the best sized and optimized images for use across your various social media outposts for your brand. If you're doing any kind of business online ignoring the potential power of social media will most likely not go well for you or your business. However, too many businesses put all of their digital eggs in one social media or spread themselves across too many sites that may not have a good return on investment for your potential customers. If you're customer targets aren't active on a particular social media service, you might want to grab your business name to protect your brand on that service, but you probably shouldn't invest too much effort into feeding that channel with content.
And regardless of what social media site you choose to invest time in for your business, you should really never forsake having your own website for generating business leads. Publish your content first on your own site, that you have full control over (which is why I generally don't recommend services like Wix, SquareSpace, etc. for a full business site. You just don't have all the control you may need over your site and changes you may need to make for your business goals.
But when you're sharing content on social media, be sure you're at least making the effort to optimize the visual content you're sharing to the platform it's being shared.
Just click on the image to enlarge if you need.