The term "weblog" was coined by Jorn Barger on December 17, 1997. The short form, "blog", was coined by Peter Merholz, who jokingly broke the word weblog into the phrase we blog in the sidebar of his blog Peterme.com in April

There are many different types of blogs, differing not only in the type of content, but also in the way that content is delivered or written.

• before 2006: The blogdex project was launched by researchers in the MIT Media Lab to crawl the Web and gather data from thousands of blogs to investigate their social properties. Information was gathered by the tool for over four years, during which it

Consumer-generated advertising is a relatively new and controversial development, and it has created a new model of marketing communication from businesses to consumers.

Blogosphere The collective community of all blogs and blog authors, particularly notable and widely read blogs, is known as the blogosphere. Since all blogs are on the internet by definition, they may be seen as interconnected and socially networked, through blogrolls,

Many bloggers, particularly those engaged in participatory journalism, are amateur journalists, and thus they differentiate themselves from the professional reporters and editors who

Blogging can result in a range of legal liabilities and other unforeseen consequences.
Defamation or liability