A deal for Comcast Corp. to buy a controlling stake in NBC Universal and create one of the most powerful media companies in the world is taking longer than expected as the current owners tussle over price.

A lawsuit in Wisconsin is bringing a fresh challenge to the practice of paying for keywords on Google and other search engines to boost one company's link over a rival's.

Sony's new online service connecting the whole range of its gadgets to downloadable content like movies and games should help build brand loyalty, a top executive said Friday.