buy FriendAdder... Its betting than whoring because you can target friends to add.
Ex: you could add friends within 100 miles of your zip code, who are males 18-14, who like rap music, etc, etc.
my boy has 22,000 friends on his rock bands page, 90% of which are legitimate friends and he has seen results like people have come to shows and said they heard of them on myspace.
its like $60, but its worth it...