Nielsen to Add Data for Mobile TV Viewing

Nielsen has long been a kingmaker in the TV industry. Its ratings data, which tracks viewership of shows, determines how advertisers shell out some $66 billion annually. But the company has been slow to adapt to new technologies and expand its reach to other media services, industry critics say.

Now Nielsen is making some significant moves.

Next week Nielsen will announce plans to augment its TV ratings data with information on viewing on tablets and smartphone, meeting a major demand of media companies that say they aren't getting credit in the current system for viewing on mobile devices. The change ...http://online.wsj.com/article/SB10001424127887323308504579085341986969458.html?mod=dist_smartbrief