Don't-Miss Social Networking Stories

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Twitter's Project Lightning will showcase event tweets visually, kind of like Snapchat

The mobile app will show tweets from popular events in a dynamic new way that incorporates photos and videos.

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News site held liable for hateful comments, prompting free-speech concerns

The ruling involving an Estonian news site has prompted concern that it undermines EU rules protecting online intermediaries.

Twitter adds autoplaying videos

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Videos will play automatically in users' feeds, without sound, until they're tapped on

PCWorld News

Facebook turns to wizened old C++ to power new photo-sharing app

Facebook found that C++ can be used to develop a single code base to run across multiple mobile paltforms

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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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Facebook will now update your News Feed based on time spent on a story

Likes, comments, and shares won't be the only factors determining which posts make the top of your News Feed.

PCWorld News

Four challenges for Twitter's next CEO

Identity problems, slowing user growth and abuse, oh my!

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Twitter to expand the DM character limit from 140 to 10,000

Could the fact that Twitter CEO Dick Costolo announced he was stepping down have something to do with the drastic product change?

Twitter, to curb abuse, lets users share block lists

macworld.com

Users can export a list of the accounts they block to share with others.

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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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Facebook letting more stores ping your phone when you're inside

Facebook's Place Tips feature highlights relevant information about businesses in News Feed.