The New York Times recently held a debate over whether Facebook helps romance or has killed it like a serial killer chucking his latest victim into a wood chipper while cackling. It is an interesting topic, but people tend to take the wrong approach to it.
A lot of arguments center around Facebook taking away "the mystery", but what do we really mean by "the mystery"? Not knowing everything about a person? Because there are some "mysteries" that we really don't need in dating.
Let's face it, we've all got dealbreakers, ranging from the serious to the goofy. If a person seems way too into something you can't stand or has political views that make you want to run away screaming, finding that out is fairly important. This isn't to say chemistry can't overwhelm these factors, but it's stuff you want to go in knowing.
But there's still things about a person that Facebook and Google can't tell you. I know plenty of people who I shouldn't be able to stand on paper that I get along with in real life, and the reverse is also true. Facebook is, in the end, nothing more than an aggregation of publicly stated facts and opinions: It is us announcing who we are to the wider world, and perhaps with fewer filters than may be entirely advisable.
So, let's worry less about what Facebook is doing to our dating lives, and worry more about the dating lives themselves. Really, dating is hard enough without having to edit ourselves everywhere.