Tumblr is one of the famous free blog hosting platform which offering professional and fully customizable templates, bookmarklets, photos, mobile apps, and social network integration.
According to Tumblr Staff Blog "This isn’t meant to be a brag – though you should definitely try our new Android and iOS apps if you haven’t yet – but a credit to all of your brilliant creative efforts. You guys have earned an audience bigger than the biggest TV networks,
and you continue to make some of the most thought provoking, insightful, inspiring, funny, diverse, and compelling content being created today. Posted by Tumblr Founder and CEO David Karp.
As above image shown 1 month stats about their people, visits and page views. which measured by Quantcast.