while not blog "software", one could say that the contents of an html directory exposed by, for example, http://weirdmachinehostname.university.edu/~username/ were the earliest blogs. Hand crafted HTML homepages and such.
Hmm nah, I remember “blogging” explicitly meant drafting and publishing posts directly from a website form, as opposed to crafting HTML documents and uploading them over FTP (which was what people did at the time and obviously complained about.)
The word "blog" appeared a few months before the infrastructure to draft and publish posts directly from a website form. And the concept of diaries/weblogs that it designated was a few years older.
