Show off the themes available for blogs in your WordPress MultiSite with a simple shortcode in any post or page.
Style Up Images helps you to make your images looks little more good & informative on mouseover.
Provides simple drag & drop image gallery functionality to enable you to display Flickr Photo Sets in your WordPress installation.
Cool slideshow for posts and pages, with different themes to choose from + Widget. Settings and documentation are under Plugin -> iSlidex. Official
Simple Portfolio allows you to easily manage your portfolio. You can append snippets, youtube and media from the built-in Media Library to projects.
WordPress Theme Demo Bar allows any wordpress theme to be previewed without activating it. A demo bar would be shown on top of page, allow users to pr
PWS allows your users to submit their websites on which they used your product, to be displayed on your predefined blog page.
WP Theme Showcase ext and i18n displays themes and info from their style.css with one or two indices. Lots of features and options and a widget.
Image zoomer is jQuery zoom tool. The plugin gives any image on your page the ability to be magnified when the mouse rolls over it.
Display themes located in wp-content/themes on a page or post in a showcase gallery with theme screenshots and preview links.
Let the wpmu users select a theme when registering