Company looking for Article Writer

I need someone who is great in english, and who can do article writing as an SEO assistant for my website. I am looking for someone to write me 10 articles of 550 word length SEO'd content. If you're interested, please attach me a couple sample articles you've written. Also please provide me with references of past employers. The following is a more detailed description of what this job entails: 1. blog commenting 2. article writing - 550 word posts 3. article submission and syndication 4. social bookmarking 5. social media marketing 6. data entry 7. misc work Also please let me know what experience you have with the following programs, if any: Traffic Kaboom, TheBestSpinner, ArticleMarketingRobot, SocialAdr, ArticleRanks, MagicArticleWriter, SocialMonkey, IMAutomater - or any similar programs you have used before. Look forward to hearing from you