"If there is a new type of social software emerging, it is clearly emerging from the blogging world. Weblogs that started as simple collections of links rapidly developed into diary-like personal platforms, and many have already turned into group discussions, as members of a clique list one another on their blogrolls and leave comments on one another's blogs. Links, RSS feeds and new protocols such as Trackback are increasing the number of connections between groups of people and their blogs, creating a parallel universe that is already known as the blogosphere. "