Only a handful of CPA blogs and some 900* lawyer "blawgs" exist today (*per the law.com article referenced below) but blogs are quickly finding their place in the marketing plans of firms who would otherwise have to invest many, many times the money and time to get such widespread and accessible publicity and/or recognition about their areas of expertise.
Of course they can't say "expertise," but if you're a lawyer or CPA, and you maintain a good blog about some area of practice, it's pretty likely you're an expert. And the public agrees.
Beyond a personal recommendation, there's really no better way to find you and see how great you are all at the same time.
The article quotes a lawyer and communications director of a 350 lawyer firm who, surprisingly, told Law.com's Legal Technology that blogs are not appropriate for large firms such as his.
Kevin offers excellent reasons why blogs are perfect for large firms and I happen to agree.
I felt bad for the large firm comm. director who shared some uninformed impressions of the blogosphere, but since he missed the mark on a few key points that even Kevin's thorough response hadn't addressed, I felt inspired to comment. Kevin posted again elaborating on my comment.
One major thing I should've mentioned in my comment is that with 350 attorneys comprising that large firm, there should be no shortage of brilliant content for the blawgs they'll probably create one day because, in the words of Kevin O'Keefe,
"It's not unlikely that within a year most every firm in the country will use a blog," he said, "at least for some of their lawyers."
You go, Kevin! I like your vision.