WordPress.org

One of the most downloaded WordPress plugins (over 30 million downloads since 2007). Use All in One SEO Pack to optimize your site for Search Engines.

By: Michael Torbert, Steve Mortiboy, Dougal Campbell, Peter Baylies, and others.

Share buttons for WordPress including the AddToAny sharing button, Facebook, Twitter, Google+, Pinterest, WhatsApp, many more, and follow icons too.

By: micropat and addtoany.

This all-in-one SEO plugin gives you control over meta titles & descriptions, open graph, auto-linking, rich-snippets, 404 monitoring, siloing &am

By: Jeffrey L. Smith, John, Aleksandar Djuric, and M Rub Shuvo.

Beautifully display social media and contact information on your website with these simple widgets.

By: godaddy, Jonathan Bardo, and Frankie Jarrett.

Increase social traffic to your website with WordPress share buttons that connect directly to over 200 social networks.

By: abramsm, Srijith V, vipinss, dnrahamim, Julka Grodel, bradaddthiscom, and others.

Recent Tweets Widget plugin for new Twitter API v1.1 with CACHE, so you won't be rate limited at Twitter!

By: noahkagan.

Shrink, beautify, track, manage and share any URL on or off of your WordPress website. Create links that look how you want using your own domain name!

By: Blair Williams.

Adds links to all of your social media and sharing site profiles. Tons of icons come in 3 sizes, 4 icon styles, and 4 animations.

By: noahkagan.

Automatically publishes blogposts to profiles/pages/groups on Facebook, Twitter, Instagram, Google+, Pinterest, LinkedIn, Blogger, Tumblr ... 22 more

By: NextScripts.

A simple plugin that enables you to add share buttons to all of your posts and/or pages.

By: Simple Share.

Free and easy way to double your email subscribers. And Sharing tools to double your traffic from Facebook, Twitter, Pinterest & more.

By: SumoMe.

Lightweight, modern looking and effective social media sharing and profile buttons and icons. All your social media needs in 1 easy package!

By: socialmediafeather.

World's leading all-in-one Content Amplification Platform that helps grow your site traffic, engagement, conversions & monetization for FREE.

By: Shareaholic.

This plugin inserts social share links at the top or bottom of each post.

By: utahta.

Twitter API 1.1 compliant plugin that provides a function to get an array of tweets from the auth'd users Twitter feed for use in themes.

By: Storm Consultancy and Liam Gladdy.

Automatically share your old posts on Twitter, Facebook, LinkedIn. Get more visitors to your website and keep your content alive.

By: Codeinwp, selu, Marius, Hardeep Asrani, Madalin_Themeisle, rsocial, and others.

Posts a Twitter update when you update your WordPress blog or add a link, with your chosen URL shortening service.

By: Joe Dolson.

WordPress button plugin so powerful and easy to use anyone can create beautiful buttons and social share icons.

By: Max Foundry, Bas Schuiling, arcware, and johnbhartley.

Congrats for joining the leader in the sharing space of WordPress plugins. "Sociable" is totally FREE, has over 1,7 million downloads and no

By: sociable.

Add twitter feeds on your WordPress site by using the Easy Twitter Feed Widget plugin.

By: DesignOrbital.

Insert and customize social buttons: Facebook Like it, Google plus +1, Twitter share, Pinterest Pin it. Share your content with friends.

By: xradar.

Your all in one share buttons plugin. Add a floating bar with share buttons to your blog. Just like Mashable!

By: joelg87 and Andrew Yates.

Official Twitter, Vine, and Periscope plugin for WordPress. Embed content and grow your audience. Requires PHP 5.4 or greater.

By: Twitter and Niall Kennedy.

Super-easy to use and 100% FREE social media plugin which adds social media icons to your website with tons of customization features!

By: socialdude.

Social Media Share Buttons for Twitter, Facebook and other social networks. Highly customizable Social Media ecosystem

By: Rene Hermenau, WP-Staging, and Ilgıt Yıldırım.

Display a customizable Under Construction or Coming Soon landing page for all users except the admin. Perfect for developing on a live server!

By: smartcat.

A clean and simple AJAX contact form with Google reCAPTCHA, Twitter Bootstrap markup and Akismet spam filtering.

By: megnicholas.

A widget that properly handles twitter feeds, including parsing @username, #hashtags, and URLs into links.

By: Aaron D. Campbell.

WordPress Social Login allow your visitors to comment and login with social networks such as Twitter, Facebook, Google, Yahoo and more.

By: Miled.

Inserts Facebook Open Graph, Google+/Schema.org, Twitter and SEO Meta Tags into your WordPress Website for more efficient sharing results.

By: Marco Almeida | Webdados and wonderm00n.