Why blog?

Marcia Lynx Qualey:

…the blog is not about creating knowledge and it is certainly not about presenting anything in a finished form. She thinks of her blog as an old-fashioned salon: a semi-public, semi-private place where readers, writers, and translators of various stripes, are able to gather informally and chat about things — a kind of laboratory of thoughts. In the context of her blog, she is not a critic, and she is not even a curator, but more of a hostess.