Blogging is a topic especially of interest to me. It is hard for me to understand how some companies would need a blog other than for SEO purposes. My main thought here is that in order to have a blog enhance your SEO it needs to be read and other bloggers and website need to link to it for it to have any authority. If you have a boring blog that no one is linking to let alone reading what is the purpose of the blog? My argument would be to save the time spent blogging an invest it elsewhere. The only companies that can have a successful blog, in my opinion and according to a lot of things I have read, are the ones that create content that is sought after by internet users. This will enhance their SEO as well as their social interactions with the people that are reading and commenting on their blogs.