This module aims to introduce the user to the basic building blocks of Web 2.0 – though some of these building blocks may be edging into Web 2.5 by this now. Many of these tools have been around for ages (some argue that blogging dates back to the Usenet days of the early 1990s), so really web 2.0 not about a specific technology but rather a combination of many of them and – most importantly - the use of these technologies by an ever wider group of people.