Marco Canestrari

Jetpack’s images CDN Photon apply by default to content and galleries. This plugin will hassle-free apply Photon to everything else like feeds and widgets’ Titles and Content.
<ul>
<li>Author: <a href="http://www.marcocanestrari.it/" rel="nofollow ugc">Marco Canestrari</a></li>
</ul>

Ultimate Photonizer

Applies Jetpack's Photon to ALL content, including widgets content and title, site logo, etc.

Slocum Studio

Scott Sousa

Please Note: This plugin is considered an alpha release and should be used with caution. We’ll be actively updating it when we can, so please report any bugs <a href="http://simplephotonphotos.com" rel="nofollow ugc">here</a> or in the support forums.
http://simplephotonphotos.com
With the release of the Photon API in Jetpack v2.0, we noticed that there wasn’t a simple way to use the GET query arguments supplied in the <a href="http://developer.wordpress.com/docs/photon/api/" rel="nofollow ugc">API documentation</a>. We set out to change this.
Introducing Simple Photon Photos, the simplest and easiest way to add JetPack Photon API effects to photos on your WordPress website. This plugin adds a control panel to the Add Media Panel when inserting an image into a post. It utilizes jQuery UI Slider Widgets to give you control over the effects you’d like to add to your images.
This plugin requires <a href="http://jetpack.me" rel="nofollow ugc">Jetpack by WordPress.com</a>.
Known Bugs/Issues
<ol>
<li>When multiple images are selected (WordPress 3.5), Simple Photon Photos options are still displayed but are displayed as default values even though values may have already been changed.</li>
</ol>
<h3>Features</h3>
Simple Photon Photos allows you to add or modify the following features using the <a href="http://developer.wordpress.com/docs/photon/api/" rel="nofollow ugc">Photon API</a>:
<ul>
<li><a href="http://developer.wordpress.com/docs/photon/api/#w" rel="nofollow ugc">Width</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#h" rel="nofollow ugc">Height</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#resize" rel="nofollow ugc">Resize</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#fit" rel="nofollow ugc">Fit</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#ulb" rel="nofollow ugc">Ulb</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#filter" rel="nofollow ugc">Filter</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#brightness" rel="nofollow ugc">Brightness</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#contrast" rel="nofollow ugc">Contrast</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#colorize" rel="nofollow ugc">Colorize</a></li>
<li><a href="http://developer.wordpress.com/docs/photon/api/#smooth" rel="nofollow ugc">Smooth</a></li>
<li>
<a href="http://developer.wordpress.com/docs/photon/api/#zoom" rel="nofollow ugc">Zoom</a>
</li>
<li>
Crop support coming soon
</li>
</ul>

Simple Photon Photos

Simply and easily adjust the size and add effects to your photos utilizing the Jetpack Photon API. This plugin requires Jetpack by WordPress.com.

Ultimate Photonizer vs Simple Photon Photos