Filipino boxing legend Manny Pacquiao has dropped a shock hint that he might quit the ring — because his mother does not want him to fight anymore. They puzzle over why one spot spreads across the Web like wildfire, while others burn out.Marketer Joseph Jaffe says viral ads can be funny, patriotic, heartwarming, gossipy or bizarre But they can’t be boring or sell too strongly. We play dodge... 

Lionel Messi has been hailed as the greatest soccer player the world has ever seen following his extraordinary exploits for European champions Barcelona. They puzzle over why one spot spreads across the Web like wildfire, while others burn out.Marketer Joseph Jaffe says viral ads can be funny, patriotic, heartwarming, gossipy or bizarre But they can’t be boring or sell too strongly. We play dodge...