'Blogging' refers to writing and publishing on the www. It's short for 'web log'. See http://en.wikipedia.org/wiki/Blog and this is not what these study participants were asked to do. Their actions were closer to writing a private diary/journaling.

Sorry Rick, but I think accuracy is called for in these reports just as much as in drug trials. Openly emoting on the www about either our literal or metaphorical wounds might have an entirely different effect.