The increasingly prominent new subset of Web pages, called `blogs' differs from traditional Web pages both in characteristics and potential to applications. We explore three aspects of the blogistan: its overall scope and size, identification of emerging hot topics of discussion and link patterns, and implications both to blogs and applications such as search. Beyond blogs, we develop a general methodology of mining evolving networks and connections. The first part of our study is longitudinal-- based on a five-week continuous fetch of a seed collection of nearly 10,000 blog URLs. The second part is based on a successive crawl of pages suspected to be blogs leading to a larger collection of several million URLs. The collection is examined for a variety of properties. We characterize blogs and study different facets of the link structure in blogs and its evolution over time, attributes of servers and domains that host many