Best offline social networks

The best offline social networks:

Postcrossing is “a project that allows you to send postcards and receive postcards back from random people around the world.” As one user puts it:

Postcrossing is like a breath of fresh air in the world filled with Facebook, Instagram, Twitter, Snapchat, WhatsApp and others.

The joy of sending and receiving postcards cannot be described but has to be experienced. I have made a good acquaintance recently with a fellow Postcrosser staying 8000 miles away from me! Where else do you get such opportunity?

I like the idea of creating a social network offline. In fact years ago I bought the domain snailbook.org with the intent to do something like this.

Are there other offline social networks?

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