JoomInvite is a Joomla component which lets your website users send invitation email to their friends by importing contacts from their email accounts. It doesnot send a registration link in the email body by default, but admin can insert the registration link in the emial body from the backend. All the fetched email ids are stored in database which can be used as a mailing list. Administrator can send mass emails to the mailing list from admin backend. Note thet Curl library/wget must be enabled in your server. Get it here:- http://www.facebook.com/pages/JoomInvite/151049911638850?sk=app_208195102528120