In the latest issue of the Association of Southern California Defense Counsel's Verdict Magazine, Laura Reathaford writes on the value of legal blogging and how and why lawyers should blog. The article appears on pages 16-17 of the issue.
I especially agree with Reathaford on how a blog can be a repository of information for the blogger. If an author writes multiple, systematic posts on a particular area of law (say...drone law), the author can rely on his or her prior blog posts in subsequent writings on the subject by using previous posts as resources for links or summaries of relevant statutes or cases. Indeed, if one's prior posts are exhaustive enough, it is possible to write a full law journal article in a manner of days.