All of these networking tools have ways to control who adds you as a contact or friend and all can be private or public. All of them have ways where you have to verify how you know people and provide their email or some details about them that would make them want to add you.
The downside is that there are people who set up profiles and never really check them again. Especially in more “mature” (ahem) age groups. But some embrace them and have a lot of fun with them—adding messages, etc.
There are many other social medias out there, for people who work at home, moms, dads, single people, and people with lots and lots of specific interests; music, books, crafting and more. Those are great if you’re networking among a specific group of people or if you just like finding people who have the same interests as you. However, this should wrap up the big “4” of networking—get out there and go public on the Internet! It’s fun!
