It is generally recognised that blogging started in 1994, with Links.net considered to be the first ever blog. Since then blogs on a variety of topics and disciplines have emerged. Undeniably, blogs have been a functional vehicle in promoting psychology and have been instrumental in promoting mental health. Psychology and mental health blogs offer a wealth of information, insight, and interesting content for their audience. The range, immediacy, and diversity of bloggers’ voices are highly compelling; readers are often drawn to blogs for their speed and intimacy. In light of this, the present paper outlines how blogs can serve as a transformative medium to promote the discipline of psychology and allied fields. It also provides a brief account of psychology blogs and provides an overview of popular blogs in the discipline. A new field could potentially materialise in the discipline and this can be known as ‘blog psychology’: a sub-branch of the discipline that attempts to apply psychological principles and research in order to optimise the benefits that readers can derive from consuming blogs. Potential theories of blog psychology may incorporate the readers’ perception, cognition, and humanistic components in regards to their experience to consuming blogs. It could also explore a range of psychological principles involved in running blogs.