Then register a profile on AshleyMadison.com. The dating site for people in a commited relationship who are looking for a random outlet (not a relationship) from their day-to-day partner. Their tagline?
"Life is short. Have an affair."
Think I'm making this up? Here is a TV spot that the site tried to run during the Super Bowl (banned in Canada and the majority of the US)
What an idea. Nothing shows how long the Long Tail is better than a site like this. By last count, the site has over 3.2 million profiles. Need an example of a niche social network in your next presentation? This is it.
Thanks to EV for the video link!