journaling

This is copied from the current issue of Christian Century magazine.
Question; Does this apply for blogging and facebook?

Write on: Researchers have known there are health benefits from journaling, whether the writing is about good experiences or traumatic ones. Researchers at the University of Missouri concluded that it doesn't take much writing to matter: they saw results after only two minutes of writing for two days
(British Journal of Health, October 30, 2007).