A Blog is a web site, main contents hereof are regular added records, images or multimedia. Blogs feature non-lengthy records of temporal importance, sorted in reverse chronological order (last entry is on top). Blog’s differences from a traditional diary are conditioned by environment: blogs are usually of public character and suppose third party readers, able to enter into open controversy with the author (in comments to blog entry or at own blogs).
A Blog is a personal user site, accessible for public browsing and consisting of regularly updated records, images and multimedia. It supposes polemics of a reader with an author.
Bloggers are people, who maintain blogs. Totality of all blogs in the Web are usually called “a blogosphere”. Based on the author body, blogs may be personal, group (corporative, club…) or social (open). Based on contents – topical or general.
Blogophotographer is a person, placing products of his/her photographic creative activity in a personal or group blog without a tendency to find any other application for these pictures.
Technical possibilities and limitations of blogs are entirely defined by general web technologies. Maintaining a blog supposes availability of software, enabling addition and modification of records and publishing them in the net by an ordinary user. This software is called “a blog engine” and is considered to be a type of a content control system.
Apart from the fundamental blog’s function, which consists in adding records by an author and consequent output thereof, standard functions of blog engines are now those for creation of automatically processed RSS and Atom lists of updates, text formatting (to HTML or other ones) and insertion of multimedia to records and the function of adding readers’ comments as mentioned before.
Blog engine can be located at personal web space of an author (in this case it is a stand alone blog), or using resources of one of the services, dedicating special space for blogs – a blog platform. Blogs can be associated by references based on “trackback” technology; whereas often at blog platforms own internal mechanisms are created, assisting in multiplying connections and establishing social nets amongst bloggers. A example is a “friend” mechanism at Live Journal, the most popular blog platform of Runet.