Plugin Protector
Add a notice to any plugin in your WordPress install. That notice will be displayed to any person trying to update or delete the plugin. Good for installs with multiple users with admin access.
BWP Google XML Sitemaps
Get full control over your XML sitemaps, used by Google and other search engines to crawl and index your site. Support for multisite, multiple taxonomies and optional Google News add-on.
WP Caregiver
Change basic settings on the back-end and front-end such as removing the admin bar, remove header links, disable notifications and even get rid of the WordPress version link.
Theme Mentor
A perfect companion to Theme Check, find some common errors that plagues theme development, and easily find where in your theme file the problem is located so you can make it a quick fix. Check any theme installed on WordPress.
YOP Poll
Easily create polls on your WordPress posts and pages, and put them anywhere with a shortcode. The plugin can be as robust as you need it to be, and provides plenty of options for expanding the functionality and customizing your polls.
All in One Schema.org Rich Snippets
Use search rich microfomrats snippets from Schema.org to add a new dimension to search engine results. Customize the output of the rich snippets, and add to any post with a simple metabox.
Category Sticky Post
Select any category from a drop-down menu and automatically assign a post as "sticky" on that category's archive page. Default styling for called out posts can be toggled on or off.
Broken Link Checker
Check for broken links in your site, and list them all in one place. Make quick checks and fixes, and specify exactly where on your WordPress install to check and how often.
Google Analytics for WordPress
Go beyond the basic set-up of Google Analtyics and track custom variables, and chose which links to track as internal and external, so that analytics in the Google dashboard contain more information.
Easy Image Gallery
Add image galleries to your post and pages with lightbox support by adding images in a metabox. Everything else is inherited from WordPress defaults making it simple to set-up and easy to start.
UK Cookie Consent
Let your users know about the use of cookies on your site with a simple to use and customizable fixed bar that informs every user to the site that cookies are being used, and links to a pre-populated page with more information.
TablePress
Add or import a table from a variety of different formats, then add it to your posts and pages with the use of a shortcode. Uses Javascript for advanced functionality like sorting and pagination, which can be customized at output.