Tumblr has revamped its Popular page with a feature called Tumblr Wire. Tumblr Wire pulls posts across Tumblr in realtime, and display them in a constantly-updating streaming of image or large font moving across a grid.
The Popular page also added Trending Tags across the page to show tags with increasing activity over the last 48 hours.
Check out Tumblr Popular page.
If you want to create a community driven blog, Tumblr has make it easy with its Submissions feature.
Visit your Tumblr blog’s Customize page under Advanced menu to enable this feature.
Once you enabled Submissions, your readers are able to submit their posts via web or email. Let say your Tumblr URL is at http://mysite.tumblr.com, the web address then for your readers to submit their post is at http://mysite.tumblr.com/submit. And the email address for their submission is mysite@tumblr.com.
Each submission is queued for approval. You visit your blog’s submission page to approve the post for it to go live. The url to submission page is displayed at the right-hand menu on Tumblr’s main page. Or you can use the URL http://mysite.tumblr.com/submissions.
Some examples of community-driven blogs:
