Aloha,
I am a trained Historian and Anthropologist, who happens to study videogames. I have worked for other websites, writing articles on whatever they randomly told me to, and believe that I can do the same for you.
If you desire proof of writing ability, just give me an assignment, and I will write you one article free of charge. This article should show you that I mean business, and that I can deliver the product quickly.
Thank you, and Mahalo,
-Keith