BusinessWeek Online reports that a recent Swiss study has found that people tend to use their communications technology in specialized ways with specific audiences. We know that cell phone users in general spend a lot of time talking into these devices, but researchers have found that on average, cell phone users generally use it to talk to very few people. In fact, the researchers found that the average cell phone user makes the majority of his calls to just four people. Stefana Broadbent, an ethnologist for Swisscomm Innovations, a division of Switzerland’s largest telecom operator, says that the expanded communications environment we find ourselves in today has led to “specializing” communications channels. For example, cell phone, eMail, and fixed phone line users tend to differentiate their use of these devices by sorting into content, habits, and communication partners…