In the early days of blogging you could go to the Technorati Blog Index, enter some identifying terms for a particular niche topic and discover what the top blogs were in the field. Identifying top niche blogs is invaluable knowledge for anyone wanting to enter, study or market to people in a particular field.It's one of the fastest and most effective ways to learn the lay of the land and get involved in the community of successful artists, real estate agents or 4-H club leaders using social med