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.

Cyrille

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This solution is discreet and won’t force you to have a custom plugin to match your website.

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Pretty Pinterest Pins vs Feed Social Sidebar