Blogs encourage feedback and deepen customer relationships

A weblog (as it's called in full) is basically an online diary. Entries don't have to be formal and can be any length desired. Diaries are appealing to readers as they are both candid and revealing.
By maintaining a blog, a business can have a no-hassle one-to-one conversation with its customers any time or anywhere in the world. A blog can be used to build a community where clients can post their comments/opinions regarding the topic's discussed.

Blogs rank higher in search engine results

From an SEO perspective, blog posts are generally ranked higher by Google and other search engines than static web pages. This is because blog content is normally updated more frequently and often contains links to relevant resources.

Blogs demonstrate expertise

A blog gives a small business the opportunity to demonstrate its expertise in a given area. It's also a forum to listen to feedback.