Join us Dec. 1-3 in New Orleans for the Digiday Programmatic Marketing Summit
        The Feed is Digiday’s Web-culture corner. Check The Feed everyday for Web-culture news roundups, infographics, essays and more. Follow us on Twitter for updates throughout the day @SWeissman.
Pinterest might not yet be the new Tumblr, but it’s certainly making eye-opening gains.
According to data from ComScore via eMarketer, Tumblr experienced a 172 percent increase in worldwide audience size between October 2010 and October 2011, topped only by China’s version of Twitter Sina Weibo with a 181 percent increase.
Looking at growth in time spent per user on social networking sites worldwide, Pinterest saw an average of 72.1 minutes per worldwide user in October 2011, which is a 512 percent increase since May 2011. That’s no small feat. Tumblr visitors spent an average of 81.6 minutes on the site, up 41 Tumblr visitors posted an average of 81.6 minutes in October, up 41 percent from October 2010.
While both Tumblr and Pinterest have seen impressive growth in audience size and time spent per user, they are still pretty far behind the time spent per user on Facebook, which also saw 40 percent growth from October 2010 with users spending an average of 387.7 minutes on the site in October 2011.
Social Networks Worldwide by Minutes per User, Oct. 2011
Social Networks Worldwide by % Growth in Time Spent per User, Oct. 2011
More in Media
    People Inc. strikes Microsoft AI licensing deal as Google’s AI Overviews hit programmatic ad revenue
People Inc. has struck an AI licensing deal with Microsoft to be part of the tech giant’s pay-per-usage AI content marketplace.
    How The Times is using AI to model synthetic focus groups from human audiences
The British news publisher has worked with Electric Twin to create a synthetic audience research panel based on The Times’ human reader panel.
    Ranking is out, visibility is in as publishers chip away at AI search optimization
In the AI era, measuring pageviews isn’t enough — publishers need a new metrics stack that tracks how they are cited in AI engines and ties it all to clicks and revenue.
