Caitlin McGarryAssociate Editor, PCWorld Follow me on Google+

Caitlin covers Apple news, social networks, and the sharing economy from IDG's New York bureau.

Google's new Photos and Streams chief signals changes ahead for Google+

Google+ might split in two as photos move to the forefront.

Why Twitter just bought a social media talent agency

Vine stars are making millions off branded clips, and Twitter wants a cut.

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Apple helps Pinterest launch rich pins for better app discovery

The Cupertino giant will curate a Pinterest collection of featured apps.

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Twitter's plan to boost growth: Videos, messaging, and timelines for people who don't use Twitter

Twitter is creating an experience for you, even if you don't have a Twitter account.

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Twitter makes up with Google to make tweets easily searchable

The deal means more millions more eyeballs will be on Twitter, even without new users.

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Super Bowl dominates social media with dancing sharks and crazy plays

Twitter and Facebook saw a slew of posts, photos, and videos during one of the most exciting Super Bowl games in recent memory.

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Facebook edges into Foursquare territory with place tips on iOS

The social network will use a combination of Wi-Fi, GPS, and new Bluetooth beacons to show you location-based info.

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Facebook and Twitter battle to be your Super Bowl second screen

The social networks need your attention to serve up more ads.

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How Facebook is using autoplaying videos and ad tech to make billions

Now a $10 billion+ business, Facebook looks to the next decade.

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Twitter launches two much-needed new tools for video shoots and group chats

Forget timeline curation. Twitter's new features make the platform more appealing for both power users and newcomers.

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Apple brings back free music with new iTunes promotion

So long, Single of the Week. Hello, Free on iTunes.

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Twitter timeline tweak helps you catch up on missed tweets

The new feature floats important stories to the top of your timeline in a Facebook-esque move.

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Facebook cracks down on News Feed hoaxes

Maybe now your friends and family will stop spreading that classic fake story about Facebook charging membership fees.

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How this 16-year-old turned an Instagram feed into a $15K-a-month social media empire

How to win followers and influence teenage girls...with the help of some star-making companies and their algorithms, of course.

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Facebook pushes Amber Alerts to News Feed to help recover missing children

Amber Alerts on Facebook could go viral and help law enforcement agencies find kids faster.