Articles about cloud computing - repost

I need a series of 500 - 700 word articles on various aspects of cloud computing. The contractor can suggest some topics and I will select. The site is already an established PR5 blog with steady traffic, but needs more regular content/articles, written with SEO in mind. I can suggest SEO phrases. Articles have to be free of fluff, be professional and provide seriously useful information about cloud computing and the mobile cloud. The audience is mostly IT professionals and business managers. You must have reasonable working knowledge of the subject and include some Information Technology related work in your samples. Previous work on Cloud Computing will be a big plus. I offer up to $10 per article (inclusive of Elance fees). I need ca. 2 articles pr. week. Copyscape WILL be used to check for originality and any work found copied from elsewhere will be rejected without payment. Please bid for a set of five articles to begin with. My selection criteria will be based on quality and capability > experience > price