in 1987, sierra on-line started to publish its own gaming magazine, about its upcoming games and interviews with the developers. the magazine was initially named "the sierra newsletter", "the sierra news magazine", and "the sierra/dynamix newsmagazine". however, since sierra club already published a magazine called "sierra magazine", the name of the magazine published by sierra on-line was changed to "interaction" in 1991. it was discontinued in 1999.