There are a variety of social networks out there that we can use as teachers to expand our learning through a PLN, connect with students and parents, and communicate with colleagues. The three major ones are Twitter, Google Plus, and Facebook. They all have different features, functions, and uses.
I use Twitter and Google Plus for real time updates from websites and news and to connect with educators across the globe in my Personal Learning Network to share resources and communicate. I use Facebook to connect with friends and family and keep in touch with former students. You can read more about how and why I use these different services here.
Info.it has a great infographic comparing some of the major features of each of these, from relationships, to sharing, to content.
Which do you use and how / why?
Google+ and Google+ Pages - great for educators and schools
Twitter, Facebook, RSS feeds, Email, Google+ - why/when I use each one
Infographic comparing Facebook and Google+ security