We’ve updated our briefing paper on using social media to estimate public opinion, including new research from the Pew Research Center, Coca-Cola Company, and others. See our report here, and our previous briefing paper on opt-in online panels here.

The (terrific) American Scholar magazine has published our letter to the editor on the niceties of reliable, representative public opinion research, including the question of what in fact constitutes a “poll.” See it here.