Do you need to find what are the best blogs in each category.Here is the solution for it.The following links will show you the best blogs.
Feedster Search for news feeds and blogs by topic
Bloglines (Registration required.) Find blogs by topic (or name) and read them here
Blogpulse, from Intelliseek, lets you search blogs and automatically finds trends
Truth Laid Bear Traffic Rankings Most-visited blogs
Flickr Not quite blogging, but fascinating. Storytelling through photo sharing.