Although coined only 3 years ago by O’Reilly Media, Web 2.0 is quickly becoming a common practice in our internet experience, but many people do not know what it really means. Its name suggests that it’s an upgrade from the original Web 1.0. As such, web 2.0 would point to the next generation of the internet, truly an enormous thing. But what is the real essence of web 2.0? This article is meant to provide a broad overview of web 2.0, what it is, how it came about, and how you can recognize it.