Jackie Cohen wrote on 16th March 2011 that based on February 2011′s activity, the most engaged page on Facebook i.e. with the most active members as a percentage of total number of members, is Manchester United’s page, beating Justin Bieber into second place, even though the singer’s page has much more fans, posts and comments.
That means most of the discussions on Bieber’s page were contributed by a smaller percentage of members than Man U’s page.
