Microsoft, Google and Dell are among tech firms collaborating to create a database of occupied channels in the TV white spaces spectrum. The White Spaces Database Group is helping the FCC identify current channels to avoid interference from wireless broadband devices new to the spectrum. Other members of the group: Comsearch, Hewlett-Packard, Motorola and NeuStar.
Current - For people in public media
Current (https://current.org/2009/02/firms-cooperate-to-establish-white-space-database/)