This document introduces blogging and the blogosphere. It defines a blog as an online journal and blogger as someone who keeps a blog. It notes that blogs allow for one-click publishing and are a potent method for social networking and marketing. The document discusses how the Philippine blogging population is growing, with over 200,000 active bloggers who are mostly young and female. It recommends bloggers get familiar with blogging communities and principles like applying time-tested PR strategies.