http://www.theverge.com/2012/11/5/3607456/tumblr-20-billion-monthly-pageviews-monetization http://www.theverge.com/2012/11/5/3607456/tumblr-20-billion-... Acco

http://www.theverge.com/2012/11/5/3607456/tumblr-20-billion-monthly-pageviews-monetization http://www.theverge.com/2012/11/5/3607456/tumblr-20-billion-... According to that, Tumblr had 20 billion monthly pageviews around september 2012. That is about 250 billion pageviews a year. http://www.quora.com/Amazon-Web-Services/Roughly-how-much-does-it-cost-to-host-a-site-like-Quora-using-Amazon-EC2-S3 http://www.quora.com/Amazon-Web-Services/Roughly-how-much-do... Gives a very rough estimate of about 50k in server costs for 1 billion page views. That would be $12 million a year in server costs alone. As of May, they had 178 employees. It is going to take a lot more than $2 million to pay those employees, then you have all the on costs, office space, advertising, etc, etc. I'd be very surprised if they weren't losing more than $15 million a year, and going on those quick calculations + knowing how much money they have raised, I think they're at a net loss of about $40 million a year, or more. I said "its obvious" based on the rumours they are running out of money plus knowledge of when they last raised money. But doing a quick calculation as shown here throws up the same conclusion.