I am a big fan of social networking sites, especially VK and Instagram
It's really very interesting to browse other people’s VK pages, view their photos, and read the comments.
You can find some interesting people and send them your friend request.
Also, you can save some wonderful photos and share them with your friends on VK.
It is also good for those people who have little to do and are always bored.
Plus these sites allow you to share your life with your friends, both real and virtual.
The only problem with Instagram and similar sites is that now I stay at home a lot and rarely go out.
In brief, it wonderful that I can live so active a life staying indoors!