Definitely an interesting case study and the first time I had heard about CampusNetwork. I didn't understand what Goldberg motivation for taking down his high school social network was...
From the article: "In the meantime, Goldberg had launched a social network for high schools called Friendex. But he says he killed the project after a month at the request of Zuckerberg and the Facebook team. "They made me feel really bad for having launched it," he says. "So I took it down." Facebook soon expanded to high schools."
How did Facebook make him feel bad? Why would he feel bad either? Seems like FB at the time wasn't in high school so it would make sense to try to make a play there...more importantly considering how facebook started...they should be the last people to make people feel bad to starting a competing service...