Friend Me!: 600 Years of Social Networking in America

Anyone who texts recognizes "LOL," "2G2BT," and "PRW" as shorthand for "laughing out loud," "too good to be true," and "parents are watching." But did you know that in the 1800s-when your great-great-great-grandparents were alive-telegraph operators used similar abbreviations in telegrams? For example, "GM," "SFD," and "GA" meant "good morning," "stop for dinner," and "go ahead." At the time, telegrams were a new and superfast way for people to network with others.

Social networking isn't...