If you have any interest in the marketing and social media field, this article from Social Media Examiner is a must-read.  It reports on a major research study by MarketingProfs that uncovered key data and trends in how various social media channels are being used in marketing communication efforts.  I can’t recommend this article or SocialMediaExaminer enough.  If SME is not on your daily RSS feed or regular blog check, it needs to be.