Chapter 13 Plasma Poster: Unifying Work CUltUres With a Digital Poster Ice breakers are hard to do digitally. Elizabeth Churchill, former head of Plasma Poster research project If we define cultures as networks of knowledge shared by groups of people (Hong, 2009), then maintaining cultural coherence depends on technologies -- for example, books, maps, Web sites, and telephones -- that help perpetuate networks. Because physical distance is a significant barrier to holding these net- works together, people have used technologies to bridge those distances since