social networks

The Sex Files

Gaydar Algorithm Outs Facebook Users


A pair of MIT students claim that they have created an algorithm that outs gay members of Facebook by analyzing the sexual orientations of their networks of friends.

The students first analyzed the networks of people who publicized their sexual orientation on Facebook. Turns out that statistically speaking, gay men have more gay friends than straight guys do. So then, they used an algorithm to run the stats on men who kept mum about their sexual orientation on the site. Their computer program was able to correctly identify 10 men whom the students personally knew to be gay in the real world but who hadn't shared that fact on Facebook.

[ Read Full Story ]

Nine Overhyped and Misleading Health Headlines Debunked

Does red wine make you live longer? Do bras cause cancer? Is sugar as addictive as cocaine and heroin? We uncover what headline-grabbing scientific studies really mean for your health

It takes researchers years, sometimes decades, to pin down subtle, important findings about your health, but it takes bumbling journalists (or their editors) just a few seconds to screw it all up. Here, a selection of the most misleading headlines, and a few tips to help you spot the hype early.

[ Read Full Story ]

Your Guide To Following The Iranian Election Protests Online

The best sources to follow the unprecedented torrents of information flowing from the ground via social media tools

As you have heard (by now, ad nauseum), the protests surrounding Iran’s troubled and disputed presidential election this past Friday have highlighted how technology and social media are redefining the way moments of mass political unrest are reported, live. Instead of watching CNN, you can observe the same on-the-ground reporting--all in real time--that the CNN folks are watching and then passing on to you. Here's where to find it.

[ Read Full Story ]
Science Confirms the Obvious

Please Pass the Happiness

The company you keep can keep you in good spirits, says a new study

A smile is infectious, as the saying goes, and now scientists have proven it. In spades. A study published today in British Medical Journal shows that happiness acts like a blessed disease: it can spread from person to person through social channels. On average, the study finds, every happy friend increases your own chance of being happy by 9 percent.

[ Read Full Story ]
READ MORE ABOUT > ,

You Really Are Just Six Degrees from Kevin Bacon

A new Microsoft study suggests a scientific basis to the old trivia game

There was some wisdom behind that stoner pop-culture game you used to play in college, but it turns out the “six-degrees of separation” hypothesis was a few tenths off the mark. According to data gleaned from Microsoft’s Messenger IM service, all human contacts in a social network can be connected in 6.6 degrees.

[ Read Full Story ]
The Grouse

The Grouse: Social Network Failure

How do you handle bad manners online? Our columnist's adventures in "e-tiquette"

Ive been Xinged. Ive been Hi5ed. Ive been Linked In—oh, have I been—and Ive been Facebooked and Myspaced and Twittered (and if youve read comments from my column last week, Ive been flamed as well, but thats another story). Ive taken it all till now, but I cant takes no more. If youve suffered from the increasing torrent of well-meaning but annoying e-mail notifications and invites from aspiring social-networking-site friends, you know of which I speak. To mangle the beloved Pogo quote, I have seen the enemy, and he is us.

[ Read Full Story ]
READ MORE ABOUT > , ,

MySpace to Add New Features

The social networking giant follows in Facebook's steps with a set of easy apps

MySpace, the popular online community and social networking site, announced plans to add games, email and other features developed by outside providers next month. Adding applications from the outside is possible now, but its a little too difficult for the average member, involving cutting and pasting the relevant code from a third party.

[ Read Full Story ]

Hitwise Hearts Soulja Boy


My favorite moment at the Web 2.0 Summit so far happened this afternoon, when Bill Tancer, the global research manager of online research firm Hitwise, described how five months ago, his company predicted the success of seemingly out-of-nowhere chart-topping rapper Soulja Boy.

In case you're not familiar, Soulja Boy is the auteur of the incomprehensible but highly dance-able song "Crank That," which has been number one in the Billboard 100 for the past six weeks.

Apparently, Hitwise charted the Soulja Boy boom by tracking the amount of traffic streaming from social networking sites to search engines to his official Web site, and predicted back in May that the rapper (who was virtually unknown at the time) would become a major mainstream success.

"If theres buzz on the social networks, we track traffic going from those sites to a band's official web site. Buzz bleeds over to search and you can chart that and see the tipping point in advance," Tancer said.

Who knew Hitwise was so hip? —Megan Miller

[ Read Full Story ]



Download Our iPhone App

Stay up to date on the latest news of the future of science and technology from your iPhone with full articles, images and offline viewing



Follow Us On Twitter

Featuring every article from the magazine and website, plus links from around the Web. Also see our PopSci DIY feed



Become a Fan On Facebook

Share links with friends, comment on stories and more


November 2009: Astronaut 3.0

Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.

Check out the issue's full contents online here

Popular Science Photo Pool


Share your photos in the Pop Sci pool at www.flickr.com!
tags_sprite.png
POP_embeddedForm_cover_May09.jpg