The Nielsen's and social media: An update
http://www.adweek.com/blognetwork/nielsen-adds-instagram-measurement-to-its-social-content-ratings/49517?utm_source=sailthru&utm_medium=email&utm_term=ABN_MorningMediaNewsfeed&utm_campaign=MorningMediaNewsfeed_Newsletter_2018012508&s_id=57e9a0c42ddf9c7ef386f68c