Don Caprio

As the name implies, this social sharing plugin is simple and loads pretty fast. The buttons do not rely on external resources to load, it’s written in PHP, HTML and CSS.
There’s an option to show the buttons on posts and pages. You can also put the buttons anywhere in your template using this template tag:
<pre><code><?php dc_social_share_tag(); ?>
</code></pre>
You can also display using this shortcode in single posts and pages:
<pre><code>[dc-social]
</code></pre>
Please note that these buttons do not show share counts. The essence of the whole thing is to keep it very simplified.
The only button that requires a little snippet of JS to work is the Pinterest button but this does not slow down your site in anyway. A demo of the plugin can be seen here: http://geek.ng/

DC Simple Share Buttons

A set of very simple social sharing buttons that loads pretty fast (no javascript, no images).

Seed Webs

Just upload this plugin to WordPress and activate it. The plugin will add social sharing buttons under post content.
You can enable each social network and change settings via Settings → Seed Social.
Official development of Seed Social is on GitHub, with official stable releases published on WordPress.org. The GitHub repo can be found at https://github.com/SeedThemes/seed-social. Please use the Support tab for potential bugs, issues, or enhancement ideas.

Seed Social

แจ่มๆ

Minimal Social Sharing WordPress Plugin (Just Facebook, Twitter and Line)

DC Simple Share Buttons vs Seed Social