Two dudes, 22 and 24 years old, built a sexting app through which more than 60 million "snaps" (photo-messages) are now sent daily. The messages are ephemeral, and vanish irretrievably shortly after they're sent, which people seem to think is great for sending dicks or boobs. Anyway, they've just raised $13.5 million to grow the business. FML. You can hate Snapchat all you like, you old person you, but it's not likely to go away any time soon.