This document provides an introduction to blogs, including what they are, who makes them, and how to create one. It notes that blogs are websites where individuals or groups regularly share opinions and information. Over 156 million blogs exist, and common types include personal blogs, microblogging, corporate/organizational blogs, genre blogs focused on topics like culture or travel, and media-type blogs like vlogs or photoblogs. Different blog genres include travel, culture, art/photography, social networking, occasional themes, business, education, and instructional topics.