I might have hit the motherload. Here is a link to, I beleive, free scripts for 'Yahoo', 'Hotmail' and 'Gmail' addressbook imports. The idea would be to send invites to friends after import. Since we do not have addressbooks yet, I am assuming that we would just do temp import to the server, email the invites out to friends and delete the email list after..
http://curl.phptrack.com/forum/viewt...5af4b8 6b0788
Cent does this look like another module you could develop, similar to your welcome email module?
Vive la Pligg!