Radio Buttons for Taxonomies
Replace the default taxonomy boxes with a custom metabox that uses radio buttons... effectively limiting each post to a single term in that taxonomy.
Display your WordPress menus as a dropdown select box. Great for mobile designs.
Allows other plugins to use Wordpress Plugin Framework Reloaded. Made for plugin developers.
Slider CAPTCHA is a WordPress plugin that will allow you to replace or add a CAPTCHA field to any WordPress form.