Some Wordpress plugins are often updated, which is good think. Plugins that are updated are 100% compatible with last Wordpress version and they also are the most secure possible. A plugin that has not been updated for a long time might not work with last Wordpress version and might create a security breach for you website.
Facetious lets you add a faceted - often called an 'advanced' - search form to your WordPress website.
Promotion Slider is a jQuery slideshow populated by the promotions you enter into the WordPress admin area.
A more customizable solution than the default wordpress tag cloud.
A simple widget that displays only the most recent tweet from multiple accounts.
Custom right click menu plugin enables you to create a context menu instead of blocking right click for copyright and other issues.
Change the quotation marks that are automatically rendered as smart or curly quotes inside your content.
This plugin adds useful admin links and resources for BuddyPress 1.5+/1.6+/1.7+ to the WordPress Toolbar / Admin Bar.
Automatically maps subdomains to page and post permalinks based on post slug.
Add a fully-customizable store locator to your WordPress site.
Use this plugin to receive guest posts from Postrunner.com.