In my current Promote Your Art with Confidence class, Daniel Sroka opined:
Blogs are best (in my opinion) not for attracting people, but for convincing them to stay. People hear about you, get curious, check out your site, see your work, and then (best of all) hear you "speak" though your blog. To put it in the words of our current class, it is like having an ongoing "public speaking" opportunity that is available 24 hours a day.
Image: Daniel Sroka, Photo #5-6.