Twitter CEO Dick Costolo on Platforms, Reliability and Independence at D@CES

Twitter has crossed the threshold from Web novelty into something substantial. Now Dick Costolo’s job is to turn it into a business–one big enough to justify the sky-high valuation investors have given the messaging company.

Slow Fade-Out for Video Stores

Blockbuster Inc.’s bankruptcy last week has made it official: Technology is killing the video-rental store—and a piece of American culture with it.

A Search Engine With a Real Eye for Videos

Web video has transformed the way the Internet is used, but finding the exact clip you want can be incredibly hard. And it’s no wonder, considering that sites like YouTube conduct their hunts by looking at a clip’s “contextual metadata” — tags, video title and description — and thus can often be misled by false information.