I guess blogging could become a profession for some, as discussed here in this article–“Why Would Companies Buy Bloggers?” Excerpt:
So, why hire a blogger instead of just some writer off of eLance or Guru.com? The short answer is that you don’t just want a writer. The blogging consultant you hire should know how to write, know how to communicate (which is an entirely different matter) and know the business and marketing drivers which are likely to cause success or failure in this new venture.Much like when you are starting a new software project you need more than just software developers, when you are starting a new blog you need more than just a writer: you need someone who (at least for now) is a leader in the blogging industry, who can walk you through the process and who can be a continuing resource to you and your company as the project evolves.