The opt-in feature will match users specifically with people they aren't already friends with.
Facebook users can build a dating profile — which friends won't be able to see.
Much like when Amazon makes its own version of products that customers are buying en masse, it’s entirely possible that Facebook let third-party apps lay groundwork that it can now copy and monetize.
"This is going to be for building real, long-term relationships — not just hook-ups," Zuckerberg said.
So does the brave new world of online dating present investing opportunities?