The site served 255 million pageviews in July, according to directly measured stats by third party analytics firm Quantcast. In August, Tumblr expects to serve 330 million page impressions, and is purchasing 5 new servers to cope with the demand.
Other Tumblr stats are equally impressive:
- 50 million visitors in the last 30 days
- 650,000 posts per day (which equals 6 new posts per second)
- 5,000 new users every day
- 1.5 reblogged posts per second
A direct comparison to rival Posterous is not possible as the latter chooses to hide its traffic, but Compete.com has Tumblr at 2.6 million unique US visitors in June versus Posterous at 650,000.
In recent months, Tumblr has released an iPhone app, added support for audio recording, launched a popularity rank called Tumblarity and debuted new tools for community-powered blogs.
New Feature Today: Tumblupon
Tumblr will additionally launch a new feature today: Tumblupon (a play on popular social discovery service StumbleUpon) is a web toolbar that allows users to discover interesting Tumblr posts based on their "likes". Much the same as Facebook, Tumblr users hit a "heart" next to items they enjoy - this data is now used to power the recommendations in Tumblupon.
More Tumblr Resources from Mashable