I am not out to pick a fight, iSign. I am merely sharing my experience as a marketing exec (coupla decades) and yes, running/marketing/meeting payroll of my own businesses, including one that's currently active.
Blogs seem a nice idea. When they got some traction in the beginning (media attention), being in the blogosphere seemed the end-all. But in the end, it's not really all that, in terms of a benefit to most businesses. Thus social media is now dominant, and at the end of very many TV ads. Twitter and Facebook dominate, albeit, for a small business, Twitter and Facebook are mostly ego-pages and read by family and friends. Definitely a drop-in-the-bucket, as you say. (Ocean actually) So how much time one invests in it is the difference between time well-spent and time wasted, IMO.
Better, I believe, for a small business trying to get noticed online is the Facebook Like feature. That'll get back-links and increase relevance with Google and Bing, both of which are weighting sites more and more on social media than keywords/content within the site itself, which is all a blog is.
It's my job to know this stuff, intimately -- and I am sharing it, freely (I think that's in the spirit of S101). I can apply vinyl and digital images, too, albeit, with many errors and roughly 4 times as long as it would take you to do it, if I was trying to go quickly :^)
We each have our strengths; and if marketing were not one of mine after two decades of doing it as a career, I'd have to be an idiot.
Maybe I am an idiot, or possibly not. Folks are free to decide that on their own.