The Berkman Center for Internet & Society at Harvard Law School is hosting a symposium on April 28, Bloggership: How Blogs Are Transforming Legal Scholarship.
I think the answer has to be dramatically. For those that have not looked at it yet, I recommend 3L Epiphany. It is a blog written by Ian Best, a 3L at Moritz College of Law (Ohio State University) for academic credit. Among other useful posts, he has created A Taxonomy of Legal Blogs, a fairly comprehensive list of legal blogs organized by topic, discipline, etc. Recently, he posted A Collection of Law Review Articles Citing Legal Blogs, a 27-page collection of law review articles and state bar journals which cite legal blogs.
Among the panelists at the Harvard symposium will be Howard Bashman, author of How Appealing, "The Web's first blog devoted to appellate litigation," and Peter Lattman, principal contributor to the Wall Street Journal’s Law Blog.
The papers presented at the symposium will be available here.