This week there were several events that generated a significant level of owned brand social media campaigns capitalizing on each of these – the birth of a princess, Cinco de Mayo (May 5th), Star Wars Day (May the 4th be with you) and the Mayweather vs. Pacquiao fight . Social Media Campaigns – May 4, 5 and more Birth of a Princess #RoyalBaby Adweek published a compilation of a range of brand tweets for the birth of the princess...