“More than one million rewards were selected, nearly quadruple the year before. Approximately 1,000 projects were successfully funded each month. In fact, more projects succeeded in 2011 than launched in 2010.”
Tumblr Launches Hashtags and Facebook Integration

This is exciting news. I had added the Tumblr Fb app, but I dropped it because of the fact that the posts were coming out wonky more often than not.