An art blog is a common type of blog that comments on art. More recently, as with other types of blogs, some art blogs have taken on 'web 2.0' social networking features. Art blogs that adopt this sort of change can develop to become a source of information on art events (listings and maps), a way to share information and images, or virtual meeting ground.

Art blogs entries cover different topics, from art critiques and commentary to insider art world gossip, auction results, art news, personal essays, portfolios, interviews, artists’ journals, art marketing advice and artist biographies. Some artists use art blogs as a form of new media art project.

Art blogs may also serve as a forum to reach out to anybody interested in art — be it painting, sculpture, print making, creative photography, video art, conceptual art or new media. In this way, they may be visited not only for the practitioners of different forms of art, but also collectors, connoisseurs, and critics.

In 2011, art critic Brian Sherwin interviewed art critic Mat Gleason of Coagula Art Journal for Faso.com's FineArtViews blog. The interview between Sherwin and Gleason focused on contemporary art criticism and the role of art blog’s in present day art criticism among other issues. Gleason suggested to Sherwin that art blogs and the development of new media have become a “blow” to traditional print art magazines. Gleason and Sherwin also discussed how art bloggers form a “pack mentality” based on region and perceived significance.

Art is a term that describes a diverse range of human activities and the products of those activities, but is most often understood to refer to painting, film, photography, sculpture, and other visual media. Music, theatre, dance, literature, and interactive media are included in a broader definition of art or the arts. Until the 17th century, art referred to any skill or mastery and was not differentiated from crafts or sciences, but in modern usage the fine arts are distinguished from acquired skills in general.

Many definitions of art have been proposed by philosophers and others who have characterized art in terms of mimesis, expression, communication of emotion, or other values. During the Romantic period, art came to be seen as "a special faculty of the human mind to be classified with religion and science".

The nature of art, and related concepts such as creativity and interpretation, are explored in a branch of philosophy known as aesthetics.

The Encyclopædia Britannica Online defines art as "the use of skill and imagination in the creation of aesthetic objects, environments, or experiences that can be shared with others". By this definition of the word, artistic works have existed for almost as long as humankind: from early pre-historic art to contemporary art; however, some theories restrict the concept to modern Western societies. The first and broadest sense of art is the one that has remained closest to the older Latin meaning, which roughly translates to "skill" or "craft." A few examples where this meaning proves very broad include artifact, artificial, artifice, medical arts, and military arts. However, there are many other colloquial uses of the word, all with some relation to its etymology.

A blog (a portmanteau of the term web log) is a personal journal published on the World Wide Web consisting of discrete entries ("posts") typically displayed in reverse chronological order so the most recent post appears first. Blogs are usually the work of a single individual, occasionally of a small group, and often are themed on a single subject. Blog can also be used as a verb, meaning to maintain or add content to a blog.

The emergence and growth of blogs in the late 1990s coincided with the advent of web publishing tools that facilitated the posting of content by non-technical users. (Previously a knowledge of such technologies as HTML and FTP had been required to publish content on the Web.)

Although not a must, most good quality blogs are interactive, allowing visitors to leave comments and even message each other via GUI widgets on the blogs and it is this interactivity that distinguishes them from other static websites. In that sense, blogging can be seen as a form of social networking. Indeed, bloggers do not only produce content to post on their blogs but also build social relations with their readers and other bloggers.