Balkin on Blogging as Scholarship:
Jack Balkin has a terrific post on the role of blogs in the advancement of legal scholarship. An excerpt:
  Like all media, the blog subtly (and not so subtly) shapes how ideas are expressed, and what sorts of ideas get expressed. Blogs rarely use footnotes (links are used instead), and they usually are best for short essays rather than long discussions. But many important ideas in legal scholarship can be stated in less than 4,000 words, and it is well worth learning the skills and discipline necessary to do this.