Eric Buckley

This plugin adds Social Sharing buttons to the bottom of content in pages and posts.
We have purposely excluded the Home page for inclusion of the buttons. The script should work for custom post types as well.
Please keep in mind this is a very simple implementation. There are no Admin settings or configuration pages. If you wish to have any social networks added that are not shown, please send me a message and I will add these.
<h3>Resources</h3>
We wanted to add a section to provide link to some of the resources we used to make this plugin possible.
Helpful resources:
<a href="https://github.com/bradvin/social-share-urls" rel="nofollow ugc">Social Share URLs</a> – A helpful, open source list of the latest URLs for sharing content on social networks.
<a href="https://fontawesome.com/" rel="nofollow ugc">FontAwesome</a> – A free resource for professional website and application icons.

InstaShare Social Sharing

This plugin adds Social Sharing buttons to the bottom of content in pages and posts, so your visitors can share your website's content.

Automattic

WooCommerce

WooThemes

James Koster

Tiago Noronha

A simple plugin that adds an attractive sharing component to product pages. Prompt visitors to share your products on Facebook, Twitter, Pinterest or via Email.
This plugin requires the Storefront theme and WooCommerce plugin to be installed.

Storefront Product Sharing

Add attractive social sharing icons for Facebook, Twitter, Pinterest and Email to your product pages.

InstaShare Social Sharing vs Storefront Product Sharing