Copywriting of weekly blog post

I am looking for someone to write blog entries every week for my new site selling website design and digital services. The person should be a very capable copywriter and have knowledge or interest in the digital marketing arena. They should also be able to speak fluent english. The writer should also have an awareness of SEO keyword techniques in order to make the blog entries advantageous to the site. Users who have experience of wordpress will also be advantageous. Articles written should be 100% original and based on facts and figures available. Topic areas will include: Search Engine Optimisation, Website Design, Content Management Systems, Digital Techniques, Broadband, Technical - PHP/MySQL etc...