The document discusses blogs, including what they are, some definitions and statistics about blogging, the history of blogs, reasons why people blog, different types of blogs, how to find blogs, and major blog hosting sites. It notes that a blog is a contraction of "web log" where people chronicle their thoughts online. It provides statistics showing over 100 million blogs worldwide with 1/5 of US adults reading blogs and 1/4 maintaining one. Major blog hosts include Blogger, TypePad, and LiveJournal.