Shane Jones

This Pinterest plugin will enable your sites visitors to pin individual images on Pinterest, the pin button will appear just underneath every image in the main content.
It gives you the option to chose from the 3 versions of pinterest buttons to apply to your post images.
It also has the option to add a Pinterest follow button to the bottom of your posts.
More features and a major bug fixing release coming in version 1.0

Pinterest Image Pin

Adds Pinterest button to individual images for one by one image pinning. Enjoy

ThaNerd

I’ve written an extremely basic plugin that handles what’s described in title : Internet Explorer 9′s new Pinning feature.
With this plugin installed and enabled, if any of your blog’s authors (or yourself) pin it to their Windows 7 Taskbar, they’ll have three new links:
<ul>
<li>Write a post</li>
<li>Moderate comments</li>
<li>Upload new media</li>
</ul>
It will also display the 5 most recent posts titles for everyone.
Finally, it lets you set what color should be the back and forward buttons in IE9 after someone pins it.
<h4>Features</h4>
<ul>
<li>Localized to french</li>
</ul>

IE9-Pinning

Adds meta tags handled by Internet Explorer 9's pinning feature

Pinterest Image Pin vs IE9-Pinning