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.
Iframe Preserver plugin allows you to easily embed any iframe and preserves your embedded iframes by utilizing WordPress' Custom Fields.
Converts post types from one to another. This plugin is a complete reworking of my…
Allows users to configure whether they wish to be alerted when a comment is added, comment held, post posted.
Easily embed media from YouTube, Vimeo, Yahoo Video and Soundcloud into your posts, pages and templates.
Provides unofficial fixes for selected WordPress bugs, so you don't have to wait for the next WordPress core release.
LTW Testimonials is a powerful Wordpress plugin that will display client testimonials on your blog.
WordPress 3.1 and up allow to manage new custom post type, this plugin makes it even simpler, removing the need for you to write any code.
Add a VerticalResponse signup form to your sidebar. Lots of configuration options. Now with custom colors and shortcode support!
Easily add Trulia maps to your sidebar or embed Trulia.com real estate maps in your content.