Michael DiLorenzo's background in sports and technology PR, coupled with his entrepreneurial spirit, has proved an excellent foundation to propel the National Hockey League's Web presence. Since joining the NHL in 2008, DiLorenzo has expanded the league's reach on social networks from a zero base to almost 1 million. Last year, he spearheaded the NHL's tweetup around the Stanley Cup playoffs, which resulted in more than 1,200 participants in 23 cities. DiLorenzo has also been an active public speaker on ...