LuckyWP

The “LuckyWP Wiki Linking” plugin allows to easily organize a linking in the wiki style on the website: you specify the keyword phrases for a post, and the plugin places links to this post on other website pages that have the keyword phrases are present in the text.
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You DON’T NEED to manually place each individual link, the plugin will make it for you.
When placing a link in a post, whole words are only taken into account. For example, the link with the keyword phrase bus will be added to the text:
<blockquote>
She got on the bus at Clark Street.
</blockquote>
… and the link will NOT be added to the text:
<blockquote>
I’m here on business.
</blockquote>
In addition to links to the posts of the website, you can also place custom external links by specifying them when adding a keyword phrase.
<h4>The typical use cases:</h4>
<ul>
<li>When creating/changing a post we add a keyword phrase to it.</li>
<li>We click on the “Bind to posts” button next to the keyword phrase.</li>
<li>Profit! Links to the post are already available on other website pages.</li>
</ul>
In the <a href="https://theluckywp.com/product/wiki-linking/" rel="nofollow ugc">premium version</a> the second step can be skipped — links will automatically be created!
<h4>Features</h4>
<ul>
<li>Up to 30 keyword phrases for the entire website (In the <a href="https://theluckywp.com/product/wiki-linking/" rel="nofollow ugc">premium version</a> the number of keyword phrases is unlimited) and unlimited number of links to them.</li>
<li>The links is displayed ONLY on the single page of a post, in all other places (RSS feed, the editor on the control panel and etc.) this link will NOT be displayed.</li>
<li>Placing of links in the posts and the pages.</li>
<li>Placing of links in custom post types.</li>
<li>Support of links to third-party websites for keyword phrases.</li>
<li>Access to the functionality of the plugin is only for the administrator (the <a href="https://theluckywp.com/product/wiki-linking/" rel="nofollow ugc">premium version</a> also allows to configure the access for other roles).</li>
<li>Adding of keyword phrases while editing a post.</li>
<li>View the list of posts in which the link is placed.</li>
<li>Statistics on the number of links to the keyword phrase.</li>
<li>Number of links to the keyword phrase can be set.</li>
<li>Number of links in a post for each post type can be set separately.</li>
</ul>

LuckyWP Wiki Linking

The plugin allows to easily organize a linking in the wiki style on the website.

_ferenc

This plugin integrates WordPress sites with Glome.
Each visitor can get a “Soft Account” by a single click. Users can link soft accounts across multiple devices.
A visitor with soft account can act as a registered user, in fact he or she will receive a regular, but anonymous WordPress account. There is no need for going through the standard registration process by filling in and submitting forms.
The plugin consists of a few widgets, a user page and a settings page for WordPress administrators.
Site admins can add the widgets to their WordPress widget area. With these widgets the site’s visitors will be able to create fully functional WordPress accounts as mentioned above.
Two widgets will let these newly created anonymous, “soft accounts” to be linked with other anonymous accounts. The same WordPress site accessed by the same person on multiple devices can be personalised without ever asking for user names, email addresses or passwords.
This will make the WordPress site stand out from the rest.

Glome

This plugin improves user acquisition of Wordpress sites. It allows visitors to act as registered users without filling in any forms.

LuckyWP Wiki Linking vs Glome