AirJaldi is an organisation which has pioneered the art of creating mesh WiFi networks. They have managed to reach Internet to the hills in Dharamshala, where connectivity is a challenge.

Here is a full writeup about them. Some interesting quotes :)

The open-source community has also dabbled extensively in it, creating a suite of free software. Most of AirJaldi’s work, Ginguld says, was made possible by “standing on the shoulders of these open-source giants”.

“I hope we’ll be remembered for adding some beauty to this place, not as someone who bought the silicon valleys of Pamela Anderson to innocent Dharamshala,” Ginguld says. For him, the Internet is a basic freedom—as important as security, water or electricity.