I only count 14 articles on http://dustincurtis.com/index.html http://dustincurtis.com/index.html, of which the first bunch doesn't contain any of these Twitter

I only count 14 articles on http://dustincurtis.com/index.html http://dustincurtis.com/index.html, of which the first bunch doesn't contain any of these Twitter 'invites'. Neither does his blog. Am I overlooking something?