Here are some terms we use at UOW Blogs.
User – anyone who might use the system. We normally reserve this term for describing someone who might view a blog, ie a casual visitor.
Blogger – A person who contributes to a blog by writing entries for that blog. A blogger can publish their entries to the web immediately, or leave them unpublished and allow the blogmaster (see below) to moderate and publish them. Bloggers can be enrolled at a number of different levels of permission. See the table below for what subscribers, contributors, authors editors and administrators can do. Find more about system users and roles here.
BlogAdmin – A blogger with extra privileges and duties on the blogging system. See the above table for details. The blogadmin manages the content (entries and posts) on the blog, ensures that it is appropriate, and adjusts settings to the blog as necessary. Every blog must have at least one blogadmin.
Commenter – A person who contributes to a blog by posting comments about an entry on the blog. The policy on who is allowed to comment, and under what circumstances their comments are published, is determined by the blogmaster.