I keep getting this invitation to join <span title="[e-mail].">[e-mail]...</span> How can I report this SPAM?

Question

It's a blank group with nothing but a link on it's homepage. I thought I would just join once to avoid further invites, but it just keeps coming!

Answer 1

How can I prevent moderators from adding me to their groups or sending me invitations?

http://help.yahoo.com/l/us/yahoo/groups/...