Change the interaction dynamics of the Facebook app: it will be the sender who decides whether a content is free or should be unlocked by sending something
This message will self-destruct in 10 seconds
Surely you will remember Slingshot, the Facebook app which allows you to send self-destructing photos and videos. For those who do not know her, Slingshot – which literally meanssling – the very recent Zuckerberg app that allows users to send a photo or video to their contacts with texts and drawings. The mechanics very similar to that of Snapchat, with a big difference regarding access to the content received: so far, that photo or video could only be viewed after sending one in response.