Digital Marketing Copywriter for articles and research

We require an outsourced digital marketing blogger to write lengthy articles and undertake research for us. This is not just a copywriting or publishing project, it's based on marketing and digital marketing topics and being able to provide research on specific topics for us on areas such as:

Google+ for professional service businesses
Pinterest for Professionals
Linkedin
Team Sales in professional practices such as dentists, private doctors and lawyers
Business networking on and offline for professionals
Blogging like a pro
Selling on and offline

Average length of research will be around 4-5000 words split into topics of around 500-750 words each so costs for this sort of length article will be submitted in bid. Please state education, any sample articles or research undertaken, rate for 4-5000 words and turnaround time for consideration please.
A lot of this work is aimed at the UK market so must be UK english please and unique and capable of getting through copyscape as proof.