If you're new to blogging and especially 'blawging' then you'll be interested in this compilation by Bonnie Schucha from the University of Wisconsin Law Library called, 'Law Library Blogs and Blogs by Law Librarians or Law Library Associations.'  Bonnie currently lists 140 blogs related to law libraries and law librarians and includes a link to Law Library Buzz a feed aggregator that includes most of the blogs in her list.