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blog is a website where entries are made in journal style and displayed in a reverse chronological order.Blogs often
provide commentary or news on a particular subject, such as food, politics, or local news; some function as more personal online diaries. A typical blog combines text, images, and links to other blogs, web pages, and other media related to its topic. Most blogs are primarily textual although some focus on photographs (photoblog), videos (vlog), or audio (podcasting), and are part of a wider network of social media.The term "blog" is derived from "Web log." "Blog" can also be used as a verb, meaning
to maintain or add content to a blog.Early weblogs were simply manually updated components of common websites. However, the evolution of tools to facilitate the production and maintenance of web articles posted in said chronological fashion made the publishing process feasible to a much larger, less technical, population. Ultimately, this resulted in the distinct class of online publishing that produces blogs we recognize today. For instance, the use of some sort of browser-based software is now a typical aspect of "
blogging". Blogs can be hosted by dedicated blog hosting
services, or they can be run using blog software, such as WordPress, blogger or LiveJournal, or on regular web hosting services, such as DreamHost.After a slow start, blogging rapidly gained in popularity: the site Xanga, launched in 1996, had only 100 diaries by 1997, but over 20 million as of December 2005. Blog usage spread during 1999 and the years following, being further popularized by the near-simultaneous arrival of the first hosted blog tools:By 2001, blogging was enough of a phenomenon that how-to manuals began to appear, primarily focusing on technique. The importance of the blogging community (and its relationship to larger society) increased rapidly. Established schools of journalism began researching blogging and noting the differences between journalism and blogging.In 2002, Jerome Armstrong's friend and sometime business partner Markos Moulitsas Zúniga began DailyKos. With up to a million visits a day during peak events, it has now become one of the Internet's most trafficked blogs.The impact of this story gave greater credibility to blogs as a medium of news dissemination. Though often seen as partisan gossips, bloggers sometimes lead the way in bringing key information to public light, with mainstream media having to follow their lead. More often, however, news blogs tend to react to material already published by the mainstream media.Since 2002, blogs have gained increasing notice and coverage for their role in breaking, shaping, and spinning news stories. The Iraq war saw bloggers taking measured and passionate points of view that go beyond the traditional left-right divide of the political spectrum.The second Iraq war was the first "blog war" in another way: Iraqi bloggers gained wide readership, and one, Salam Pax, published a book of his blog. Blogs were also created by soldiers serving in the Iraq war. Such "warblog" gave readers new perspectives on the realities of war, as well as often offering different viewpoints from those of official news sources.Blogging was used to draw attention to obscure news sources. Bloggers began to provide nearly-instant commentary on televised events, creating a secondary meaning of the word "blogging": to simultaneously transcribe and editorialize speeches and events shown on television. Real-time commentary is sometimes referred to as "liveblogging."In 2004, the role of blogs became increasingly mainstream, as political consultants, news services and candidates began using them as tools for outreach and opinion forming. Even politicians not actively campaigning, Some bloggers have moved over to other media. Some blogs were an important source of news during the December 2004 Tsunami which used SMS text messaging to report from affected areas in Sri Lanka and Southern India. Silarly, during Hurricane Katrina in August 2005 and the aftermath a few blogs which were located in New Orleans, The blogdex project was launched by researchers in the MIT Media Lab to crawl the web and gather data from thousands of blogs in order to investigate their social properties. It gathered this information for over 4 years, and autonomously tracked the most contagious information spreading in the blog community. The project is no longer active.Blogs are also given rankings by Technorati based on the amount of incoming links and Alexa Internet based on the web hits of Alexa Toolbar users. In August 2006, Technorati listed the most linked-to blog as that of Chinese actress Xu Jinglei and the most-read blog as group-written Boing Boing.