More than 11,000 nonprofit professionals filled out this year's Nonprofit Social Network Benchmark Survey, sponsored by NTEN, Common Knowledge, and Blackbaud, generating a veritable cornucopia of data.

One of our favorite stats: more than half of nonprofits have no formal budget for commercial social networks like Facebook, Twitter, and LinkedIn, making it all the more impressive that 30% of the organizations that have raised more than $100,000 on Facebook have budgets under $5 million.

> Download the 2011 Nonprofit Social Network Benchmark Report

Other highlights:

• Nine out of 10 respondents(89%) report having a presence on Facebook in 2011.
• Nonprofit industry sentiment toward social networks remains very positive with 4 out of 5 (82%) nonprofits indicating that they find their commercial social networking efforts valuable.
• The community size of nonprofit house social networks (HSNs) is on the rise with an average of 5,967 members in 2011, a 70% increase year-over-year.
• Over half (55%) of nonprofits who have a house social network report that the role of their community is for Program and Service delivery, eclipsing Marketing (49%) for the first time as the primary purpose for charity house network.

> Download the 2011 Nonprofit Social Network Benchmark Report