And there's a brief discussion in a Language Log entry already - Twetiquette: http://languagelog.ldc.upenn.edu/nll/?p=2287 http://languagelog.ldc.upenn.edu/nll/

And there's a brief discussion in a Language Log entry already - Twetiquette: http://languagelog.ldc.upenn.edu/nll/?p=2287 http://languagelog.ldc.upenn.edu/nll/?p=2287