Earlier this month, New Jersey-based Mack-Cali Realty Corp. (NYSE: CLI) announced plans to install the Wall Street Journal Office Network throughout many of its northeastern U.S. office buildings. The WSJ Office Network, the brainchild of Dow Jones and partner Office Media Network, provides real time market news via digital LCD screens that are placed in common areas such as elevators and lobbies. The service can also be used to relay important building announcements and other messages to tenants and visitors. Office Media Network serves office properties located in 14 different states.