Instagram – One of the most popular services in the world. Now, probably there is no one who would never have heard about what Instagram is. It is already used by millions of people, but what is it? This is a kind of social network in which people share their photos and videos. The system here is quite simple, you just need to post photos and people will subscribe to you, you can also subscribe to your favorite actors or other channels. Now every second is registered in this service.