Recently released research and white papers:

• From Tweets to Polls: Linking Text Sentiment to Public Opinion Time Series (PDF), Brendan O'Connor, Ramnath Balasubramanyan, Bryan R. Routledge, and Noah A. Smith (via Mashable)

• Your Brand: At Risk or Ready for Growth?, Alterian

• Social Media Monitoring Review 2010, FreshNetworks

• Observatoire des marques (Mars 10), Linkfluence

• Reputation Management and Social Media, Pew Internet and American Life Project