Scientific dating web site

One in 10 Americans has used an online dating site or app, according to a 2013 report from the Pew Research Center, and 59 percent think they're a good way to meet people.So how do these companies keep their products running to find you love?Some sites, like match.com, allow users to specify how important each attribute is.

Begin slideshow Steve Harvey developed Delightful, an online dating service for women to make them "more dateable." Right.It's also pretty dangerous when both parties have different levels of power within the relationship, as well as being really skeevy if the dude is married (and a lot of them are). Tinder is an online dating app based entirely on whether you'd bone the other person.If you want an older man to pay your bills or buy you a purse just because you're adorable and don't necessarily want to have sex with him, just nag your dad. If you've ever used Tinder and complained that whoever you met was a shallow asshat, know that you are part of the problem and should swipe left on your own existence.I know several people who've met spouses or long-term loves through online dating, and that's rad. There are a few online dating sites that are just really, really f*cking terrible places to find love, romance, sex or just a decent human being.If you're looking for a relationship that won't end in heartbreak, murder, or just a whole lot of therapy that you probably wouldn't need otherwise, make sure you do everything in your power to avoid the following online dating sites.