Krzysztof Dryja (Aspexi)

Aspexi Easy Login URL:
<ul>
<li>changes your url/wp-login.php URL into your custom string i.e. url/login</li>
<li>changes your url/wp-login.php?action=register URL into your custom string i.e. url/register</li>
<li>changes your url/wp-login.php?action=lostpassword URL into your custom string i.e. url/forgot</li>
<li>related URLs fix (i.e. on login page) >=3.3.2</li>
<li>
backups original .htaccess file, restore option included
</li>
<li>
Not tested on multisite. Use at your own risk.
</li>
<li>Not tested on IIS7. Use at your own risk.</li>
<li>Be careful using this plugin with other which modify .htaccess file</li>
</ul>

Aspexi Easy Login URL

Aspexi Easy Login URL changes your url/wp-login.php URL into your custom string i.e. url/login and more (incl. Register and Forgot password links).

Nate Reist

This plugin simply adds a logout button to the content of any password protected post. Sometimes clients want a password protected page to share information with privileged individuals and the default 10 days for the cookie to expire is too long for their liking. So I wrote a little plugin to do this with AJAX and set the cookie to expire immediately, well actually 10 days in the past.
<ul>
<li>Works logged in or out as a WordPress user.</li>
<li>Uses the same functionality WordPress uses to set post cookies.</li>
<li>Has a simple settings page to make everything easier.</li>
<li>Allows you to alert user they have logged out.</li>
</ul>

Protected Posts Logout Button

Automatically adds a logout button to your password protected content.

Aspexi Easy Login URL vs Protected Posts Logout Button