Two-factor authentication: What you need to know (FAQ)

Twitter just got it. Apple recently got it, too. Google, Microsoft, Facebook, and Amazon have had it for a while. But why's two-factor authentication important, and will it keep you safe?

Foursquare partners with Gnip to sell check-in stream

The arrangement lets marketers and researchers buy access to each and every check-in as it happens.

Watch a brain surgery over Twitter, Instagram, and Vine

UCLA Health welcomed the world to watch a brain surgery through live Vine videos and Instagram photos posted on Twitter.

Google may face antitrust inquiry over display ads -- again

An investigation by the Federal Trade Commission is in the "preliminary stages," according to Bloomberg. Sources say it might not turn into a bigger probe.

Google surfaces your photos in search

The company is using computer vision and machine learning technologies to return you and your friends' G+ photos in search.

Facebook users share 1 billion stories through outside apps

The social network showcases its latest purchase -- a developer platform -- to remind developers that it values outside apps.

Search is on for lost first draft of first Web page

Someone out there could have a missing copy of the world's first Web site from 1990. Have you checked your old floppies lately?

Bezos: Forget profits for now; we're still spending

The online giant's chief executive lists more than a dozen areas where the company is pumping its money, suggesting continued pressure on profit margins as it continues to seek new markets.

Facebook halts U.K. release of HTC First as it remodels Home

Bring on the hard hats. The social network is in construction-only mode, working to repair its Android software suite before trying to take over more phones.

Broadcom unveils new 5G Wi-Fi chips for PCs, tablets, phones

Designed for 802.11ac wireless, the new 5G chips are being targeted for entry-level devices.

Twitter amps up program to display videos in your timeline

A partnership newly dubbed Twitter Amplify will see more companies integrate video clips and ads into their tweets.

Yahoo's at it again with gaming platform acquisition

The online company, which earlier this week announced it had reached a deal to buy Tumblr, has now purchased PlayerScale.

Girl's winning Google Doodle shows her dad home from war

A 12th grader has been named the 2013 U.S. Doodle 4 Google national winner for her drawing of her father returning home from Iraq.

Kim Dotcom threatens to sue Twitter, others over patent

The controversial MegaUpload founder claims he holds the patent for two-factor authentication and all he wants from the tech companies is money for his defense.

Nextdoor, your neighborhood social network, now on iPhone

App helps neighbors send and access critical updates about their communities from their smartphones.

Yahoo: We're listening to user feedback about Flickr revamp

Following a barrage of negative comments about changes to its Flickr site, Yahoo says it's listening -- and also "actively measuring flickr.com" so it can fine-tune things properly.

Siri competitor Sherpa goes after Google Glass

The CEO behind this natural language voice command app says it can operate Google Glass better than Google.

Google X acquires kite-power startup Makani

The research unit's "focus on real atoms, not bits" is expanding to include the startup's work on tethered flying wings that are designed to generate 600 kilowatts of power.

Syrian activists' Facebook pages said to be shuttered

A handful of profiles and pages on the social network, which have been gathering places for Syrians to discuss their country's civil war, have mysteriously disappeared.

Google Drive on Android scans receipts, adds Cards

Receipt scanning and a new interface -- heavily influenced from the Cards look of Google Now, Google+, Google Glass, and Google Play -- greet you in an update to Google Drive for Android.

Now for sale on Craigslist: Google Glass

Google's terms of sale might prohibit Google Glass owners from pawning off their headsets, but that hasn't stopped one from trying.

LinkedIn retools Web navigation to match mobile

The professional social network's navigation bar is now easier to use and more pleasant to behold.

Ethernet celebrates 40 years

Invented by Bob Metcalfe, the Ethernet laid the foundation for the modern-day Internet and global connectivity.

Finding faces in Google Maps terrain

Using facial recognition software, a team has created a program that crawls Google Maps, seeking out faces hidden in the Earth's folds. Do you see what it sees?

Facebook users share 1 billion stories through third-party apps

The social network showcases its latest purchase -- a developer platform -- to remind developers that it values outside apps.

Twitter fights hacking with two-factor authentication

Enough is enough for the global network of fast-moving 140-character missives. Twitter now hopes to protect member accounts with a more sophisticated log-in system.

Vint Cerf: Social conventions have not kept up with technology

Speaking of Glass, Google's chief Internet evangelist predicted, "It may be we will have to experience some damage before we discover what the social conventions are."

Better search finds its way into Android Chrome

An update to Google Chrome for Android brings better search, with an update to iOS Chrome in the offing.

Gab online about Bieber's house parties, pay $5M

Life is probably great when you're a coming-of-age pop star, but there's a risk your private life could be outed by social-media blabbermouths.

Foursquare gets better at local search with new filters on mobile

New iPhone and Android apps help people fine-tune place queries and push forward a strategy to make Foursquare king of local search.