Simply an added feature for posters.
A blog is a website (or part of a larger website), usually maintained by an individual, with regular entries of commentary, descriptions of events, or other material such as graphics or video. Entries are commonly displayed in reverse chronological order.
Many blogs provide commentary or news on a particular subject; others function as more personal online diaries. A typical blog combines text, images, web pages, and other media related to its topic.
The ability for readers to leave comments in an interactive format is an important part of many blogs. Most blogs are primarily textual. As of December 2007, blog search engine Technorati was tracking more than 112 million blogs.
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