An earlier version was already submitted to the database,
but although it was beta tested there still where some bugs in it...
so I hope that releasing it here will give us some more feedback so we
can debug it completely...
groupblocking is designed to (un)block groups simultaneously...
questions, bugs or any other feedback is appreciated...
you can download it
here
or you can download the attachment
update v1.4:
updated the wizard
fixed most off the yahoo contact bugs
known bugs:
it still has some problems with yahoo contacts
that are also on your list with a .net passport
under the same email address
/ 
Attachment: 
