Costolo will reportedly relinquish his seat on the board of directors once a new full-time CEO is found, or by year's end.
The Apple Watch offers a lot of ways to communicate. Here's what it can do and how to do it.
We show you how to send messages, throbbing heartbeats, dancing emoji, or just have a phone call on Apple's new smartwatch.
The microblogging service's chief is taking personal responsibility for the platform's slow response to user abuse and harassment, according to memos obtained by The Verge.
Technically Incorrect: To promote its new series "The Man in the High Castle," Amazon decides to confront strap hangers with Nazi and Japanese war symbolism. The ads are reportedly being pulled, but it's not clear by whom.
After "Daredevil," the second collaboration between Marvel and Netflix takes the superhero and private eye genres in a horrifying new direction.
Former "X-Files" writer Frank Spotnitz says his cinematic new Philip K. Dick adaptation found financial and creative freedom at Amazon.
From the Cheapskate: A great gift item for yourself or someone else, this 10,400mAh power pack features dual USB outputs. Plus: three bonus deals!
Whether it's the first cordless kettle or a spacecraft for civilians, UK design company Seymourpowell has long created inventions on "the edge of the future." But how do you design a world that doesn't exist yet?
The Audiophiliac ponders his attraction to intentionally distorted music.