In order to define a blogging platform — also referred to as blogging software — we must first define a blog. A blog is a website typically consisting of standard webpages as well as posts (“blog posts”), which are often chronologically-ordered articles. Posts differ from standard pages in that they are typically authored by an individual, dated, and commonly allow 3rd party users to comment and engage in the topic.
On a personal level, blogs often act as an online journal and a way for people to express their interest in topics or to tell stories of their lives. On a business level, blogs allow an avenue for businesses to communicate relevant information to their customers and the public on current or industry-related subjects.
Definition of a blog aside, a blogging platform is a software program that provides the user a way to easily add, edit, and organize blog posts and site-relevant webpages. Blogging platforms are typically a form of Content Management System (CMS).
WordPress is the most common blog platform used today.
For a more detailed definition, see Wikipedia’s blog software article (opens in a new tab).