Automattic

Daniel Bachhuber

Josh Betz

A plugin that lets you manage users across all your sites from one place on a multisite install.
If you’d like to check out the code and contribute, <a href="https://github.com/Automattic/bulk-user-management" rel="nofollow ugc">join us on GitHub</a>. Pull requests are more than welcome!

Bulk User Management

A plugin that lets you manage users across all your sites from one place on a multisite install.

Boone Gorges

Requires WordPress 3.0+ Network Mode.
Allows blog administrators to add multiple users to blogs at a time, using only a list of email addresses. When the specified email address matches an existing account, the account will be added as a user on the blog. Otherwise a new account is created and the new user added with the specified role. Based on DDImportUsers.
The plugin determines username automatically from the email address. For example, the email address bgorges100@example.com will produce the email address bgorges100. For that reason, this plugin works best when used in schools or organizations with official, unique email addresses.
When BuddyPress is installed, the welcome email will also include a link to the new user’s Edit Profile screen.
This plugin was developed for Blogs@Baruch of Baruch College’s Bernard L Schwartz Communication Institute. http://blsciblogs.baruch.cuny.edu

Simple Import Users

Allows blog administrators to add multiple users to blogs at a time.

Bulk User Management vs Simple Import Users