1. A blog is an online journal or website where an individual can post entries of commentary, descriptions of events, or other content on a regular basis like a personal diary. 2. Creating a blog involves first making a Google account if you don't have one already, then using Blogger which is owned by Google to select a template and begin customizing and publishing blog posts. 3. Blogs provide flexibility for self-expression and sharing interests with others on the web through text, images, video and other multimedia.