Marco Milesi

WP Guest Bar displays a customizable WordPress admin bar for non-logged-in users.
Inspired by BuddyPress, it provides quick links (e.g., Log In and Register) for guests, improving user engagement and site navigation.
<h4>Features</h4>
<ul>
<li>Home icon with site name and link (mobile-friendly)</li>
<li>Login link with icon (mobile-friendly)</li>
<li>Register link (if enabled)</li>
<li>Customizable message area for guests</li>
<li>WPML compatible and fully translatable</li>
<li>Lightweight and performance-optimized</li>
</ul>
Demo: <a href="http://wpgov.it" rel="nofollow ugc">wpgov.it</a>
Perfect for BBPress forums or any site looking to encourage user registration and interaction.

WP Guest Bar

Add a customizable guest bar to your WordPress site.

Nagmay

Let anonymous users preview a post before it is published!
Have you ever been writing a post that needs to be reviewed by someone who does not have access to log in? This plugin generates a simple URL that can be given out for public preview.
Based on Public Post Preview 1.3 by Matt Martz and Jonathan Dingman. Unlike Public Post Preview, the Simple Preview can be accessed by more then one user. The 24hr time limit has also been removed.
<h3>Upgrading</h3>
<ol>
<li>Click update from the WordPress plugin menu.</li>
</ol>
or
<ol>
<li>
Click ‘Download’ on this page.
</li>
<li>
Deactivate the simple preview plugin through the Plugins menu in WordPress Admin.
</li>
<li>
Upload the folder to your /wp-content/plugins directory, overwriting the previous version.
</li>
</ol>

Simple Preview

Let anonymous users preview a post before it is published!

WP Guest Bar vs Simple Preview