

I probably won't be joining any of these sites any time soon, but I enjoyed learning about them. The difference, I think, is that there was a common core, and an implicit code of conduct, among ham operators that just connecting to random people doesn't provide.

You could put out a CQ (which says I'm available to talk) and connect to other hams all over the world. In one way these sites are like ham radio, which I was involved in as a teenager. Ronald E Franklin from Mechanicsburg, PA on February 14, 2015: You would be amazed at how many people would click through to a link from a direct request. I have used them to survey people's interests on certain subjects and even to spread the word about a certain topic. I believe most of these sites are meant to provide some sort of entertainment since most of them recommend users to wear costumes or masks or play an instrument. Richard Bivins (author) from Charleston, SC on February 14, 2015:
