Credits

Share buttons for WordPress including the AddToAny sharing button, Facebook, Twitter, Google+, Pinterest, WhatsApp, many more, and follow icons too.
Akismet is quite possibly the best way in the world to protect your blog from comment and trackback spam.
Allow PHP in posts and pages. Allows you to add php functionality to WordPress Posts and Pages whilst still retaining HTML tags.
Replacement of the category widget to allow for greater customization of the category widget.
Better Delete Revision is based on the old “Delete Revision” plugin.
Checks your blog for broken links and missing images and notifies you on the dashboard if any are found.
BulletProof Security protects your website against XSS, RFI, CRLF, CSRF, Base64, Code Injection and SQL Injection hacking attempts. One-click .htaccess WordPress security protection.
Plugin Captcha intended to prove that the visitor is a human being and not a spam robot. Plugin asks the visitor to answer a math question.
Plugin for Contact Form.
Completely customize the WordPress generated read more link (posts, pages and excerpts).
The Disqus comment system replaces your WordPress comment system with your comments hosted and powered by Disqus.
WordPress plugin that allows items in the Media Library to be assigned to a category.
WordPress MiniMeta Widget with different logon types(form,link) and additional admin links. All links can be enabled or disabled.
Outbound Link Manager monitors outbound links in your posts and pages, easily allowing you to add or remove a nofollow tag, update anchor texts, or remove links altogether.
Protect your dashboard without editing the .htaccess file. The first one that completely blocks remote bot login requests.
Adds post-tags functionality for pages.
Manage different kinds of historical events that you then display in via a This Day In History widget or shortcodes.
Easily keep track of daily tasks and activities. Every registered user can maintain an individual to-do list using the rich text editor built-in to WordPress.
A widget that properly handles twitter feeds, including @username, #hashtag, and link parsing. It can even display profile images for the users. Requires PHP5.
This plugin aims to be the most configurable tag cloud widget out there, able to suit all your weird tag cloud needs.
Backup and restoration made easy. Complete backups; manual or scheduled (backup to S3, Dropbox, Google Drive, Rackspace, FTP, SFTP, email + others).
Creates a shortcode for creating numbered and linked endnotes for your blog.
Show your mobile visitors a site presentation designed just for them.
The plugin adds a splash page to your blog that lets visitors know your blog is down for maintenance. Logged in users get full access to the blog including the front-end, depends of the settings.
A lightweight WordPress Plugin that implements an FAQ page on your site using simple jQuery animation for a clean, usable interface.
Improve your WordPress SEO: Write better content and have a fully optimized WordPress site using Yoast SEO plugin.