If you have multiple WordPress installations using the same database, this plugin makes it possible for one 
installation to run off the user table of another installation. Main user table selection is completely configurable 
through the options panel, and permissions of the users can be different from blog to blog.
When you switch the user table from one blog to another, all level 10 users (administrators) of the blog you are 
switching to are also made level 10 users on the blog in which you installed the plugin. Only a level 10 user can 
make the switch.
After you switch, you should visit the Users section of the Admin panel to setup permissions for all other users. 
They will be listed as “No role for this blog” in WordPress 2.3, or with an empty Role column under “All Users” in WordPress 2.5/2.6.
Note that ideally the blog you are switching should not have more than the default admin user. Content created by all other users 
will automatically be assigned to more or less random users from the main blog when you switch (based on <code>user_id</code>). Future versions 
of the plugin may support migrating existing users and content.

Shared Users

Have your blog run off the user table of another blog, in the same database.

r-a-y

Beau Lebens

andykillen

Use your email address instead of a username to log into your WordPress.
Since email addresses are required to be unique within WordPress anyway, they also make good identifiers for logging in. For slightly better security, set your username to something random and then just forget it and use your email address instead.
Special thanks to:
<ul>
<li>r-a-y for compatibility with older versions of WPMU and XML-RPC</li>
<li>andykillen for introducing translatable strings and the Dutch translation</li>
</ul>
Translations included for:
<ul>
<li>Bengali</li>
<li>Czech</li>
<li>Dutch</li>
<li>Farsi</li>
<li>Finnish</li>
<li>French</li>
<li>German</li>
<li>Greek</li>
<li>Hungarian</li>
<li>Italian</li>
<li>Lithuanian</li>
<li>Persian</li>
<li>Polish</li>
<li>Portuguese (Brazil)</li>
<li>Russian</li>
<li>Serbian</li>
<li>Spanish</li>
<li>Swedish</li>
<li>Turkish</li>
</ul>

Email Login

Thanks for a slick little plugin! Works just like it should. You're awesome!



Does what it does out of the box.

The plugin does not remove the login field from the registration form, so users still need to enter a login name.

Does not actually remove the login field

Use your email address instead of a username to log into your WordPress.

Shared Users vs Email Login