We are so used to use online services for EVERYTHING that we lost the habit to ask ourselves "who control this? Are the data I'm sending visible to anybody?". Mail, chat, video-conferences... all online services of which, sometimes, we don't even know the owner. Realizing that this was a bad thing was a first step, discovering that an alternative existed (and that it was cheaper than I expected) was the real revelation. I can host, in one single server for less than 10$ a month, all of them: my personal webmail server, a video conference service, a real-time chat. And I'm the one controlling them (all free software of course). Self-hosting is the way, and everybody should follow it: if you are a non technician ask a friend. There are tons of online tutorial very easy to follow that will lend you an hand. The digital revolution begins from this: being in control of what you use.