Create simple, elegant footnotes on your site. Use the [ref] shortcode and the plugin takes care of the rest.
wpSEO is a user friendly and efficent WordPress Plugin to take care of SEO optimzation on your WordPress website.
This plugin gives every widget an extra control field called “Widget logic” that lets you control the pages that the widget will appear on.
The text field lets you use WP’s Conditional Tags, or any general PHP code.
There is also an option to add a WordPress ‘widget_content’ filter — this lets you tweak standard widgets to suit your theme without editing plugins and core code.
VaultPress continuously monitors and stores updates to your self-hosted WordPress blogs and standalone WordPress websites. by Automattic
GD Star Rating is advanced and feature packed plugin for setting up rating system on your WordPress blog. Plugin allows you to set up different rating systems for posts, pages and comments with great degree of customization.
List of features is very, very long, and you can check it out on the page on the right, or better yet go to the official website. Plugin will still remain free and there is no intention for that to change. But, support terms are changed and here you can find more info on that.
Breadcrumb NavXT is a WordPress plugin compatible with WordPress versions 3.0 and up. This plugin generates locational breadcrumb trails for your WordPress blog. These represent the hierarchy leading up to the current page rather than the actual path taken to arrive at the current page.
Very complete Google Analytics plugin with easy authentication and lots of other features. Developer Joost de Valk provides tutorials and releases very frequent updates expanding the plugin.
Track your WordPress site easily and with lots of metadata: views per author & category, automatic tracking of outbound clicks and pageviews.
Dynamic Widgets gives you more control over your widgets. It lets you dynamically place widgets on WordPress pages by excluding or including rules with just a few mouse clicks by role, dates, for the homepage, single posts, pages, authors, categories, archives, error page, search page and custom post types.
Plugins for ClassiPress, the most popular and widely used classified ads software for WordPress.