The writer makes regular additions to the site in text, file and image form, and others add comments. The latest entry appears first, and other people can leave comments on what is written, encouraging a dialogue to develop between the writer and the readers.
Example
The Guardian newspaper and the BBC now have blogs on their online sites.
In the classroom
Class blogs are an excellent way to motivate learners to produce English, and the applications such as ‘Blogger' make them extremely easy to start. Students can be encouraged to communicate with each other outside class through a blog. To monitor them, many teachers use a central ‘hub' blog of their own, with links to learner blogs through this.
Further links:
https://www.teachingenglish.org.uk/article/using-web-resources-create-tasks-real-outcomes
https://www.teachingenglish.org.uk/article/using-social-media-classroom
https://www.teachingenglish.org.uk/become-a-teachingenglish-blogger