Earlier today, we released the first annual report on the State of Private Sharing. The results illustrate what you've told us all year: You want more control over who sees what you share and an easy way enabling everyone to participate.

The response to Posterous Spaces confirms that controlled sharing is here to stay.  In addition to accelerated new-user growth, we've seen skyrocketing engagement.  Four times as many photos and five times as many videos are shared on private Spaces as on public Spaces.

And we're just getting started - many of you have noticed the performance improvements that rolled out this week, and we have several other features planned that will make sharing with the people you care about easier than ever before.

In related news, we're thrilled to announce that Brian Frank has joined Posterous as our Chief Product Officer.  Brian's accomplishments in product definition and design across web and mobile services are numerous, and we couldn't be more pleased to have him on board. You can read more from Brian on his own Posterous Space, http://www.brianfrank.com.

Survey Details:

We commissioned a survey of 2,014 U.S. social networking users aged 18 and over in October, 2011. This means that we paid Harris Interactive to field the survey for us.  They have asked us to include this disclaimer below.

Data for this survey were collected by Harris Interactive Service Bureau ("HISB") on behalf of Posterous Inc. HISB was responsible for the data collected and Posterous was responsible for the survey design and data analysis.