I start far more posts than I actually post (I have 30 in draft at the moment) because I am disciplining myself to one post a day. Which is why I am only just now bringing My So-Called Blog (written in January) to your attention.
It isn’t very deep or academically rigorous but it’s nonetheless fascinating to me because it shows the motivations and some of the consequences of this behaviour. My favourite quote:
He wanted his posts to be read, and feared that people would read them, and hoped that people would read them, and didn’t care if people read them. He wanted to be included while priding himself on his outsider status. And while he sometimes wrote messages that were explicitly public — announcing a band practice, for instance — he also had his own stringent notions of etiquette. His crush had an online journal, but J. had never read it; that would be too intrusive, he explained.
Thanks to Many-to-Many for the link