Tinder is this new kind of dating app for the iPhone. Basically you connect with other iPhone users in your vicinity who also have the app. You are presented with photos and you can swipe yes/no through them. If 2 people 'like' each other, they can initiate a chat within the app. Then they can organize to meet up. That's the idea. So here's how you make money off of this. Download the app and get a random picture of a fairly attractive girl. Whenever you are bored and are in a fairly crowded place with your iPhone, open up the app and swipe 'Yes' to everyone. When you get lots of 'matches', start chatting to them and then send them links to dating site affiliate link (Ploose.com is a good one). Or however else you want to monetize this. Quick and easy way to make money on the go just with your iPhone.