jowilki

This plugin allows you to display thumbnails and links to yours (or anyones!) latest Pins from Pinterest in your sidebar. It is styled after Pinterest and offers a clean and modern look to show off your pins.
This widget is fully customizable, you can:
<ul>
<li>pull the latest pins from any Pinterest user</li>
<li>display only pins from specific boards</li>
<li>choose the number of pins to display</li>
<li>show or hide the image captions</li>
<li>display a “Follow me on Pinterest” button under your pins</li>
</ul>
Features:
<ul>
<li>Clean and Modern Look (like Pinterest)</li>
<li>Looks great on light and dark backgrounds</li>
<li>Captions scale and look nice with long or short text</li>
<li>Semantic HTML</li>
<li>Easy to Install: Simply add a Pinterest username and you’re good to go!</li>
</ul>
More to come when Pinterest opens their API! This project is maintained on github if you’d like to contribute : 
https://github.com/jowilki/pretty-pinterest-pins

Pretty Pinterest Pins

A plugin to show off images, captions, and links from your latest Pinterest activity.

Abhishek Kumar

mrsztuczkens

If you use many different plugins to add social media share buttons to your website, most likely each plugin has its own images and your website looks inconsistent. Frizzly is here to fix that. Frizzly allows you to share your posts on multiple social networks: Facebook, Twitter, Pinterest, Linkedin and more. You can easily choose on which pages the share buttons should show up and where they should be placed.
Features:
<ul>
<li>add share icons before and after the content of your posts</li>
<li>add share icons over images (especially useful for websites that use images extensively)</li>
<li>choose only share buttons that you need</li>
<li>don’t show share buttons on certain pages (e.g. your home page)</li>
</ul>

Frizzly – Social Share Buttons

Frizzly allows you to add share buttons on images and in post content.

Pretty Pinterest Pins vs Frizzly – Social Share Buttons