John McDougall puts together a great list on why lawyers should be blogging and I fully agree with the advantages he states. By demonstrating on a regular basis you are an expert in your niche area of the law and establishing your self as the "go-to" person is a sure way to get more clients.
The problem is, McDougall says you need to do it once a week. I meet law firms everyday and there are very few lawyers who can blog once per week. Yes, there is the odd one at most firms who can do one every couple of weeks but usually that is because they are a "writer" and enjoy writing blogs. For the majority however, they just don't have the spare time to blog and even if they did, for someone who is not a natural writer it is just a very difficult thing to do: Starting with a blank page in front of you, thinking about what you are going to write, setting the scene, formulating a conclusion and getting over the worry that everyone might laugh at you when it goes out on the World Wide Web - it's just not that easy.
Blogging just might be the number one tactic for law firm Internet marketing.... ... Having a blog shows visitors that you are passionate and are authoritative on your subject matter. ...These days you do need to take your blog more seriously and add content at least once a week.
http://legalmarketingreview.com/blogging/9-tips-on-blogging-for-law-firms-and-building-authority/