Aaron D. Campbell

A widget that displays rotating images from a post’s gallery in the sidebar of 
your site. You just specify the post or page, and it will cycle through all the 
images from the gallery of that post or page. you can have as many of them as 
you want on your site simultaneously. Requires PHP5.
In WordPress 2.6, another plugin of mine has been included into the CORE to 
allow these to be reorder your images to make them display in whatever order you 
prefer. Until then, go get <a href="https://wordpress.org/extend/plugins/reorder-gallery/" rel="ugc">Reorder Gallery</a>!

Gallery Widget Pro

A widget that displays rotating images from a post's gallery in the sidebar of your site. Requires PHP5.

quinnthehuskey

Some web designers like to fade the edges of their images (or select images) in order to provide a softer 
contrast between the edges of their image and the background of their website. Doing this typically requires the use 
of some sort of photo editing software. Moderately skilled web developers may be able to use CSS and HTML code to 
generate a similar effect dynamically. This plugin, however, simplifies the process to merely applying an extra CSS class 
to an image after it has been uploaded.
<h3>Credits</h3>
Special thanks to Ben Nadel for his tutorial on overlaying gradients on images with jQuery. 
His tutorial inspired the creation of this plugin. [See the full tutorial]: http://www.bennadel.com/blog/1014-Creating-Transparent-Gradients-With-jQuery.htm

Faded Borders for Images

This plugin lets you place a faded border around any image file.

Gallery Widget Pro vs Faded Borders for Images