Michael Dinerstein (Mission Mike)

Simple Share plugin is designed for quick implementation. Install, activate, and save settings to add a sharebar to help visitors easily share your site’s pages, posts or custom post types with ease. Users can share posts with Facebook, Twitter, LinkedIn, Reddit, Tumblr, StumbleUpon, Email, or Pinterest.
This WordPress social media sharing plugin is simple, with minimal options, and no reliance 3rd-party resources (such as the Facebook SDK scripts).
Simple Share does not allow you to change any meta titles, keywords, open graph data, etc. It only provides a generally-configurable sharebar of social media platforms for users to quickly share URLs from blog posts, pages, or custom post types of your choosing.
In Settings, sharing platforms/icons can be shown or hidden, and default values can be set for share meta (Twitter “via”, hashtags, etc).
<h3>SEO Plugin Title Support</h3>
SEO post title support for <a href="https://wordpress.org/plugins/wordpress-seo/" rel="ugc">Yoast SEO</a> and <a href="https://wordpress.org/plugins/all-in-one-seo-pack/" rel="ugc">All-in-one SEO Pack</a> is built in. If no SEO title is detected for the post, the WordPress post title is used. Please note there is not yet support for using Yoast, All-in-one SEO, or other plugins’ custom social media post titles.
Other SEO plugin support for post titles can be added upon request.
<h3>AMP Support</h3>
In Settings, AMP-specific <a href="https://amp.dev/documentation/components/amp-social-share/" rel="nofollow ugc">amp-social-share</a> elements available to be used in lieu of traditional HTML for social media sharing icons. There is out-of-the-box AMP page detection included for the <a href="https://wordpress.org/plugins/amp/" rel="ugc">AMP</a> plugin, and the <a href="https://wordpress.org/plugins/accelerated-mobile-pages/" rel="ugc">AMP for WP – Accelerated Mobile Pages</a> plugin.
If neither of these plugins are in use on your site, you can enable the setting to detect if the page’s URL ends in /amp/ – which is not a foolproof way to detect AMP, but can be used if other options are not available.
If additional AMP plugin support is required, please email <a href="https://profiles.wordpress.org/missionmike/" rel="nofollow ugc">the author</a> to request.
<h3>Social Media Platform Support</h3>
Currently, the following platforms and share options are supported:
<ul>
<li>Facebook</li>
<li>Twitter</li>
<li>LinkedIn</li>
<li>Reddit</li>
<li>Tumblr</li>
<li>Email</li>
<li>Pinterest</li>
</ul>
<h3>Let’s Build</h3>
If you’d like to see another platform included, please let me know!
Please kindly report any issues or conflicts to the author by <a href="https://wordpress.org/support/plugin/dts-simple-share/" rel="ugc">opening a support request</a> or emailing the author.
<h3>Special Thanks</h3>
Thanks to the contributors of the <a href="https://github.com/bradvin/social-share-urls" rel="nofollow ugc">social-share-urls GitHub repo</a>, which helped make this plugin development possible.

Simple Share

Disclaimer: I wrote the plugin. Therefore by default, I'm biased. 

That said, I built this plugin to help me in my every-day (I manage many websites). Some time ago, I had the need for a very simple, light-weight, customize-able social media sharing solution for WordPress. At the time, I was unable to find something simple and lightweight - the options I found either had too many settings, pop-ups, or caused other trouble.

Therefore, I customized a solution to fit my needs at the time. I periodically work to improve it, as time allows. I hope this plugin is also helpful to others!

Love it.

Simplify page/post sharing with an easily added sharebar for users.

Paul Ryan

jojaba

the_elusive

Anil Natha

pkarjala

Eduardo Larequi

Authorizer restricts access to a WordPress site to specific users, typically students enrolled in a university course. It maintains a list of approved users that you can edit to determine who has access. It also replaces the default WordPress login/authorization system with one relying on an external server, such as Google, CAS, LDAP, or an OAuth2 provider. Finally, Authorizer lets you limit invalid login attempts to prevent bots from compromising your users’ accounts.
View or contribute to the plugin source on GitHub: <a href="https://github.com/uhm-coe/authorizer" rel="nofollow ugc">https://github.com/uhm-coe/authorizer</a>
Authorizer requires the following:
<ul>
<li>CAS server (2.x, 3.x, 4.x, 5.x, 6.x, or 7.x) or LDAP server (plugin needs the URL)</li>
<li>PHP extensions: php-ldap, php-curl, php-dom</li>
</ul>
Authorizer provides the following options:
<ul>
<li>Authentication: WordPress accounts; Google accounts; CAS accounts; LDAP accounts; OAuth2 accounts</li>
<li>Login Access: All authenticated users (all local and all external can log in); Only specific users (all local and approved external users can log in)</li>
<li>View Access: Everyone (open access); Only logged in users</li>
<li>Limit Login Attempts: Progressively increase the amount of time required between invalid login attempts.</li>
<li>Shortcode: Use the <code>[authorizer_login_form]</code> shortcode to embed a wp_login_form() outside of wp-login.php.</li>
</ul>

Authorizer

Integrates nicely with Google hosted domain/s. Couldn't be happier with how it works!

Integrates well with Google Logins

I've experimented this plugin on a multisite and everything works pretty well.

Works great even on a multisite setup

Authorizer limits login attempts, restricts access to specific users, and authenticates against external sources (OAuth2, Google, LDAP, or CAS).

Simple Share vs Authorizer