HTML Forms best practices: http://net.tutsplus.com/tutorials/html-css-techniques/20-html-forms-best-practices-for-beginners/
Overview of HTML 5: http://www.alistapart.com/articles/get-ready-for-html-5/
Top XHTML validation errors: http://designreviver.com/articles/top-validation-errors-when-using-xhtml/
25 Creative Web site Footers: http://designreviver.com/inspiration/25-creative-website-footers/
Learn 3 Excellent JavaScript Libraries at Once: http://net.tutsplus.com/tutorials/javascript-ajax/learn-3-excellent-javascript-libraries-at-once/