Blog Writer Needed to create blog website and content

We would like someone who can write a weekly blog for us. Our company sell organic baby clothing and we would like a section of our website or a site linked to our website with a blog on all things organic and eco-friendly/sustainable and baby products/clothing. This will be a weekly project, ongoing. We would anticipate maybe 2-4 hours of work a week will be needed on this. Our website is being built at the moment and is not yet up and running. If you know how to create a blogging website to link to our existing website, work can begin straight away.