It's a proven fact that blogs are magnets for search engines, particularly Google. That being said, you can increase your ranking even more by focusing on keyword optimization within your blog posts. I'm not talking about keyword stuffing, but being sensitive to tactful use of relevant keywords that target the desired traffic and audience you want to reach.

There is an excellent article written by Amanda G. Watlington, entitled Even Blogs Need Keyword Research that goes into great detail about the advantages of keyword optimization for blogs.

Here's a quote to whet your appetite. . .

"[T]he technology underlying blogs and blogging is search friendly, and blog content is both fresh and rich in topical relevance. Aren't these attributes just what search engines have told search marketers they want - fresh, relevant content? Blogs are like candy to spiders - not necessarily good for them but snatched up as eagerly as Halloween trick-or-treats by kids."

While I respect the work of credible SEO experts, I believe a routinely written, keyword optimized, topically targeted blog can give you higher and more frequent returns at a lower cost than any other form of search engine marketing. For that reason alone, blogs are worth the time and investment.