It seems natural to start this introduction of Web 2.0 tools with blogs as they have become one of the most popular and pervasive technologies. Statistics provided by Technorati show that as of April 2007, they were tracking 70 million blogs and had recorded a growth of 120,000 new blogs every day and 17 new posts per second.
So, there's a lot of blogs out there but what is a blog?
The Oxford English Dictionary defines a blog as: "a frequently updated web site consisting of personal observations, excerpts from other sources, etc., typically run by a single person, and usually with hyperlinks to other sites; an online journal or diary."
Blogs are used to discuss different topics from the personal to the political. The community of bloggers is known as the blogosphere and there's a healthy archivist presence out there, with a mix of personal blogs and professional organisational ones. Through these blogs, issues are raised and discussed within the blogging community, such as professional duties, digitisation, improving services and in some cases Web 2.0.