NURCaptcha inserts a reCAPTCHA on the Register Form of your site to protect it against spambots.
Gives BuddyPress system administrators a way to select specific groups to join all existing members to as well as add new users automatically.
Admin SMS Alert sends a SMS Message (Text) to the provided cell phone on the chosen carrier for selected alerts.
Logs the IP of the user when they register a new account. View the signup IP by going to the Users menu or by editing that user.
A plugin to set up the email sent to new users when they register.
A plugin that adds a Gravatar to your blog registration page, which is updated via AJAX.