Journal

A page from the notebook of 18th century artist George Caitlin, with the headline "Amusements" describing his paintings of various activities

Your Blog as a Commonplace Book

In a post titled The Memex Method Cory Doctorow notes that he thinks of his blog as a kind of commonplace book. It is a sort of digital journal where he collects whatever captures his attention and saves it for future use. The benefit that his blog gives him over a notebook or a PKM