Merriam-Webster’s Words of the Year 2004
Blog noun [short for Weblog] (1999) : a Web site that contains an online personal journal with reflections, comments, and often hyperlinks provided by the writer
Via BoingBoing
Other definition from Marketingterms.com
Definition:
A frequent, chronological publication of personal thoughts and Web links.Information
A blog is often a mixture of what is happening in a person’s life and what is happening on the Web, a kind of hybrid diary/guide site, although there are as many unique types of blogs as there are people.
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I like the term mixture as much as hybrid, bâtard… Blogging, un art impur?
Rogers Blog 