Twitter shareholders have been on a roller coaster ride, with the latest upswing coming on news of its chief operating officer's departure.
Ali Rowghani resigned over a "fundamental disagreement" with CEO Dick Costolo over what the COO role entailed, CNBC previously reported.
Twitter's shares were up more than 4 percent in midday trading Thursday.
Leading up to the news, the microblogging site hadn't been making as much money as investors had expected and the possible sources of the company's long-term revenue growth have been unclear, according to Michael Gorman, Engadget editor in chief.
"I think it sounds like probably the folks on Wall Street are with the higher-ups at Twitter management right now and they believe that kind of removing some responsibilities away from the COO and eliminating that position is going to be the right move," Gorman said.
A new high-tech medical alert device, which is aimed toward the elderly and those with special needs, is now available to not only help aging consumers stay in control of their lives but also to help them stay connected to their family caregivers in times of an emergency.
The GreatCall Splash can quickly summon assistance or emergency services through a click of a button, said Dean Williams, vice president of technology for the safety product company GreatCall. It can also survive up to 30 minutes in 3 feet of water, comes with a simple charging cradle and has a clip on the back to attach it to a piece of clothing.
Prepaid cellphone plans could get more expensive if a Sprint and T-Mobile merger is sealed.
That's because often cheaper prepaid plans initially came about as a way for wireless carriers to get their foot in the door with consumers, noted Mike Prospero, reviews editor at Laptop Mag.
"The reason Sprint and T-Mobile offer these plans is a way to grab market share at the expense of revenue. Combined, they would have nearly as many subscribers at AT&T and Verizon, so there'd be less incentive to offer lower-cost deals," Prospero said.
Apple is playing catch-up with new features to its mobile operating system and apps announced at its Worldwide Developers Conference this week.
Apple plans to bring voice and video messaging to its iMessage application, and like SnapChat, the new version of iMessage will allow messages to self-destruct. Apple is also improving its cloud services, pitting itself against companies such as DropBox and Evernote in the realm of file storage.
But those new capabilities aren't likely to lure users away from Android devices, according to Maggie Reardon, a senior writer at CNET.
Summer driving season is underway, and some of the millions of Americans hitting the roads in the next few months may be taking advantage of some new car gadgets that could make road trips a little bit easier.
Dealing with a dead battery, for instance, could be a little less stressful thanks to a number of portable car jump-starters on the market.
Apple is acquiring much more than a headphones company when it seals its $3 billion deal to buy Beats.
Along with Beats headphones, Apple will be able to take advantage of the celebrity appeal of rapper Dr. Dre and music and film producer Jimmy Iovine, as well as a relatively new streaming music service, Beats Music, which could give Apple a boost amid the serious competition that iTunes has been facing against streaming music subscription services such as Spotify, Pandora and Rdio.
"This is something that I think is going to really show that Apple is really trying to take a more innovative approach and also be more culturally relevant, and I think that's very, very important at this stage in Apple's game to be more culturally relevant as a company and as a brand," said Mario Armstrong, a digital lifestyle expert and contributor on the TODAY Show.
Look past the fact Google's new prototype car doesn't have a steering wheel or gas and brake pedals. Get over the gee-whiz fascination that people could soon be riding in driverless cars. Instead, see what the Google prototype could represent: the end of bad drivers.
Don't laugh; this may be a peak at a future few could have ever imagined.
If Google's prototype works as planned it will eliminate the need for humans to make driving decisions.
With what seemingly feels like a million smartphone apps available these days, it could be hard to decide which ones may be worth considering when it comes to managing your health habits.
To make that decision easier, here are a few standout ones recommended by Jesse Draper, CEO of multimedia company Valley Girl.
Rise: The nutrition-based app for iOS devices keeps track of what you eat and pairs you with a professional nutritionist to help achieve diet goals. For $15 a week, the nutritionist offers suggestions on your meals to better your habits.
Mole Detective: The app takes pictures of moles and analyzes the symptoms of melanoma to increase the chance of detecting skin cancer in the early stages. Available for Android devices, the app helps you understand the top five symptoms of the skin cancer, and tracking the change in the mole over time. The only certain way to diagnosis a mole is through a biopsy, so users should still visit a dermatologist if a mole is showing symptoms of melanoma or changes rapidly, said Draper.
iHealth MyVitals: Weight, blood pressure diet and activity quantification can be tracked through this app. A user can even create plans and set reminders to help stay focused. The app is available for iOS devices.
Besides these health apps, folks can also try Weight Watchers, SkinVision and the Fitbit iOS app.
—By CNBC's Erika Santoro.
Online privacy largely relies on the strength of a website's encryption technology, but after recent data breaches that include a hack attack at eBay, web users shouldn't take the need for strong passwords for granted, according to security experts.
Besides avoiding consecutive numbers as passwords, there are several tips, tricks and tools to help web users keep their passwords secure.
Google's expensive smart glasses could be more than just a strain on a gadget lover's budget; they could be causing eye strain among some of its users, experts and Google Glass owners warn.
The Google Glass display requires users to look up and to the right, away from the natural line of sight, and that could lead to headaches, according to Betabeat, a tech site that interviewed Eli Peli, a Harvard doctor who consulted with Google on its Glass development.