The information is mostly useful, but the academic format is tough to slog through. It could have been summarized as:
- You'll probably find out about jobs from people you've worked with before, people who you aren't particularly close to.
- Jobs are usually about 2 connections away.
- You don't have to have a huge list of close personal contacts, just make sure that people in your list kinda remember who you are. That's good enough.