Tomorrow, October 15, is the first ever Blog Action Day. It's a day where Bloggers around the web are asked to write about one specific topic in the hopes of creating a united awareness. This year's topic is the environment. Bloggers are encouraged to put their own spin on the topic, writing about issues that are relevant and important to each individual blog and its readers. This is a brilliant way to leverage the power of blogs. Over 15000 blogs have registered to participate, reaching an estimated 12 million readers. A simple idea, but potentially very effective.