itzoovim

WordPress Login Box (WPLB) lets you add a log in/out box to your website.
WPLB includes an options panel which gives you control over your form.
Features:
<ul>
<li>Different styles</li>
<li>Highly customizable</li>
<li>Lightweight</li>
<li>Can be integreated with any theme</li>
<li>Works well with other plugins</li>
<li>Hackable</li>
</ul>
This plugin lets you choose custom links for a forgot your password page,and registration page. 
It also lets you choose a url that you users will be redirected to after they log-in/out. 
You can also enable the option to not redirect your users to WP-Login after failed login attempts! 
This plugins works well with other member plugins, and can help you create an overall better user experience.
You can view a sample <a href="http://itzoovim.com/plugins/customize-and-add-a-wordpress-login-form-to-your-site/#sample_wordpres_login_form" rel="nofollow ugc">wordpress login form</a> by visiting this link.
<h3>Requirements</h3>
In order to work, WPLB needs the following :
<ol>
<li>PHP version 5+</li>
<li>Preferably the latest version of WordPress.</li>
</ol>
<h3>Donations</h3>
We are still working on a donations link at the moment. For now, leaving a nice rating will be appreciated as well.

WP Login Box

Easily add a forum like log in/out form to your site.

jontasc

knewton-wp

The Request Access plugin is intended for WordPress website owners who want to allow people to sign up for their website in a controlled way.
Through this plugin, external users can create accounts which are immediately put into “Pending” state. While an account is pending, it can only access content on your website that you designate as “public”. All existing and future site content is private by default except for the required pages (see below).
In your admin area, you can view a list of pending accounts, and then choose to approve or deny their application. The plugin logs all admin actions and allows you to control which account types have access to approve and deny pending accounts. Logs are only visible to admins.
The plugin includes notification emails to administrators (new registrations) and to external users (approved/denied).

Request Access

The Request Access plugin is intended for WordPress website owners who want to allow people to sign up for their website in a controlled way.

WP Login Box vs Request Access