Article on Social Media (Twitter, Facebook, LinkedIn, Foursquare) Writer Needed - Creative Writing, Copy Writing

# what is the value of Facebook, Twitter, Foursquare, and LinkedIn? We need a native English speaker who can write a great article (approx 800 words) on the value of these four different social media sites. We want each site to be explained and to have it's own dedicated section in the article. Our company focuses on social media marketing, so the article should encourage business owners to have us help them with their social media marketing needs. You will be given a list of keywords that should be incorporated into the article to help our SEO efforts. Please provide writing samples. Thanks