72% of people active on Twitter daily publish blog posts at least once a month

"Who are Twitter users and why are they so important to your brand?
Of the users who are active on Twitter daily:
72% publish blog posts at least once a month
70% comment on others’ blog posts
61% write at least one product review a month
61% comment on news sites
56% write articles for third-party sites
53% post videos online
50% make contributions to wiki sites
48% share deals found through coupon forums
In essence: What happens on Twitter doesn’t stay on Twitter."

Source:  Data from Exact Target, reported by The Next Web, 18th August 2011