SAN FRANCISCO, March 31, 2011 /PRNewswire/ -- Ping HD, a leading provider of digital communication solutions for the sports, convention and entertainment industries, joined with the World Champion San Francisco Giants to announce the launch of Ping HD's digital menu board system at AT&T Park. Pi
Source : http://www.prnewswire.com/news-releases/ping-hd-hi...
Source : http://www.prnewswire.com/news-releases/ping-hd-hi...