A blog (a truncation of the expression weblog) is a discussion or informational website published on the World Wide Web consisting of discrete, often informal diary-style text entries ("posts").

Posts are typically displayed in reverse chronological order, so that the most recent post appears first, at the top of the web page.

Until 2009, blogs were usually the work of a single individual, occasionally of a small group, and often covered a single subject or topic.

In the 2010s, "multi-author blogs" (MABs) have developed, with posts written by large numbers of authors and sometimes professionally edited.

MABs from newspapers, other media outlets, universities, think tanks, advocacy groups, and similar institutions account for an increasing quantity of blog traffic.

The rise of Twitter and other "microblogging" systems helps integrate MABs and single-author blogs into the news media.

Blog can also be used as a verb, meaning to maintain or add content to a blog.

News is information about current events.

Journalists provide news through many different media, based on word of mouth, printing, postal systems, broadcasting, electronic communication, and also on their own testimony, as witnesses of relevant events.

Technology ("science of craft", from Greek, techne, "art, skill, cunning of hand"; and) is the collection of techniques, skills, s and processes used in the production of goods or services or in the accomplishment of objectives, such as scientific investigation.

Technology can be the knowledge of techniques, processes, and the like, or it can be embedded in machines which can be operated without detailed knowledge of their workings.

A review is an evaluation of a publication, service, or company such as a movie (a movie review), video game (video game review), musical composition (music review of a composition or recording), book (book review); a piece of hardware like a car, home appliance, or computer; or an event or performance, such as a live music concert, play, musical theater show, dance show, or art exhibition.

In addition to a critical evaluation, the review's author may assign the work a rating to indicate its relative merit.

More loosely, an author may review current events, trends, or items in the news.

A compilation of reviews may itself be called a review.

The New York Review of Books, for instance, is a collection of essays on literature, culture, and current affairs.

National Review, founded by William F. Buckley, Jr., is an influential conservative magazine, and Monthly Review is a long-running socialist periodical.