If I have already sent you an email from my gmail account, you have received a spam called "Salut" sent from firstname.lastname@example.org in my name.
After receiving such invitation from 3 of my friends over the last week, I decided to try this website as I did not understand what did it have interesting. Like most modern sites they suggest to look for your contacts from other adressbooks (gmail, yahoo, msn, ...). I don't know why I decided to import my gmail adressbook to this unknown site but I really regret it now : they sent that spam automatically to all my gmail address book, meaning hundreds of people and a few mailing lists :(
I closed my account and complained to them about their methods but that's too late...
I'm really sorry about this, I will be much more careful with your addresses from now on :(