Yes, many individuals and companies do just that.
Common reasons include:
In our blog post Do blogs help SEO? this is discussed in more detail.
We offer a fully confidential ghost writing service where blogs can be created, maintained or expanded or we can simply supply articles for your blog on a regular basis (daily, weekly or monthly) to suit your needs.
The text we provide is 100% original and written by a human, not a computer.Each piece is itself optimised for a chosen word or phrase to maximise the impact of it, and the blog as a whole, on the internet. If you want a blog but don't have the resources to reliably maintain one then contact us at the SEO quote page.
I'm Tim Hill, a Search Engine Optimisation and Online Marketing specialist. I created this site to help others understand that SEO is not a mysterious black art!.
If your a newbie try the Getting Started in SEO page, otherwise feel free to dig around and learn more.