Copywriters required for writing 10 Drupal related articles

Need copywriters who have thorough Drupal & PHP knowledge to write 10 (ten) unique articles (titles follow): 1. Drupal vs. Joomla (tabular comparison of features) 2. Drupal vs. Kentico (tabular comparison of features) 3. Drupal vs. OpenCMS (tabular comparison of features) 4. Introduction to Drupal (Drupal fundamentals, Nodes, Taxonomy etc) 5. Introduction to Custom Content Types (CCK & Views) 6. Introduction to Drupal's Theme Layer 7. Top 50 most useful Drupal modules (with UNIQUE descriptions of each) 8. Drupal - the most powerful open-source CMS (400 word article) 9. Why use open-source software? (Linux, Apache, MySQL, PHP, Drupal) 10. Future of Drupal in the Enterprise Each article should be at least 450-500 words. Please demonstrate your Drupal expertise along with your bid. If you already have your own open-source/Drupal blog, please send us the link. Articles will be rated on the following criteria: * Thoroughness in coverage of topic * Uniqueness of article (it will be checked through Copyscape) Milestone Payments will be as follows: * 25% advance * 25% upon delivery & approval of first 5 articles * 25% upon delivery & approval of next 3 articles * 25% upon delivery & approval of final 2 articles