The default version of WordPress comes with a range of import tools which let you import users from other WordPress powered sites and a range of blogging scripts. Last week Teleogistic released a new plugin called Simple Import Users which lets you import new users using only email addresses.
You can enter an infinite number of emails into the form. A user will then be created for each email address using the first part of the email address (e.g. [email protected] would create the user test).
You can also set the user role for each imported user and a welcome email is also sent to every new user (and includes a link to the users BuddyPress profile if it is installed).
I don’t have a need for using this plugin however I can see how useful this could be for others. It was specifically developed for a College to import users using the email list they had for students so organisations and companies would no doubt see the similar benefits.
Download Link: Simple Import Users
* Kudos to Teleogistic for releasing another great plugin :)