Internet companies must screen content submitted by users, and the firms that sell the screening services are weighing the emotional toll on their workers.
Investigators are said to be looking at allegations that Apple uses its market position to deter labels from giving Amazon.com exclusive access to soon-to-be released music.
Major League Baseball Advanced Media will handle the technology infrastructure and customer support for the nearly 3,500 live events that ESPN streams each year.
In addition to its standard TV offerings, TiVo, the DVR pioneer, said it would offer an array of related offerings from Netflix, Blockbuster, YouTube and Amazon.