Zach MinersU.S. Correspondent, IDG News Service

Zach Miners covers social networking, search, and general technology news for the IDG News Service, and is based in San Francisco.

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The average mobile YouTube session is now 40 minutes

That's double the session time from a year ago, executives said Thursday.

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The vanishing: What happened to Google Street View's missing streets

Many towns and cities are littered with small gaps in the Google Street View imagery. Why?

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Facebook's Zuckerberg wants to be the Stephen Hawking of social relations

What makes humans social? Facebook's CEO wants to know.

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Which songs stumped Shakira? Shazam will now show you

An updated version of the app will show artists' searches to users.

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Tech throws its weight behind same-sex marriage ruling ... with rainbows and emojis

Companies are voicing support for the U.S. Supreme Court ruling across social media. Facebook has even released a filter for overlaying a rainbow on profile pictures.

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A Facebook account is no longer needed for Messenger

Now you can sign up for Facebook's messaging service with just a name and phone number.

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Facebook releases a separate app for private photo sharing

Moments will automatically detect people's friends in their smartphone camera roll.

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Jawbone again sues Fitbit, this time claiming patent infringement

The suit follows a previous Jawbone complaint alleging Fitbit stole trade secrets.

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Get ready for more Buy buttons on Facebook

Facebook expands its partnership with Shopify for buying items in News Feed

Instagram cleans up its desktop site, enlarging photos

The changes bring Instagram's site design more in line with its mobile app

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Brace yourself for videos on Apple Watch

Twitter's Vine app will launch for Apple Watch later this year

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Jay Z tries to grow Tidal with a desktop app

Students can also get a discount on the paid music streaming service.

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Pinterest turns its feed into a store with buyable pins

iPhone and iPad users will be able to buy items on Pinterest starting later this month.

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Tweets now appear in Google search results

Actual tweets will appear on mobile devices, depending on the search.

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Facebook could cash in from Messenger games

Facebook is reportedly working with game developers to offer their apps in Messenger.