The term “weblog” is a combination of the word “web” and the word “log.” The term “blog” is a shortened version of “weblog.” Though the most common form of blog resembles an on-line public diary, there are a number of different types and variations of blogs.
Wikipedia (a wiki) defines weblogs as follows:
A blog is a user-generated website where entries are made in journal style and displayed in a reverse chronological order.Blogs 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. The ability for readers to leave comments in an interactive format is an important part of most early blogs. Most blogs are primarily textual although some focus on photographs (photoblog), sketchblog, videos (vlog), or audio (podcasting), and are part of a wider network of social media.The term “blog” is a portmanteau, or, in other words, a blend of the words web and log (Web log). “Blog” can also be used as a verb, meaning to maintain or add content to a blog.