One of the benefits of my trip to North Korea last spring has been keeping in touch with the other people that participated. There were a lot of travel-junkies in the group and people are often quick to share information about an upcoming trip or deal they found in our WhatsApp group.
Recently someone shared this link to a map containing wifi passwords for airports all over the world. It's called WiFox and is available for download on the app store.
Man, where was that when I was doing heavy traveling! Next time I’m out and about I’ll probably make use of this site. For now I’m filing it alongside my other travel resources.