As said in the previous article, as well as all around the web, your image is critical. Promoting your image, or personal brand, is one thing, controlling it is another one. My previous article: Clean up the mess! gave some advices regarding search engine data management and data cleaning.
But your image is not only limited to your online self, it also comes from your manners, or the way you get in touch with people. And this is even more important when, you are seeking employment. Emailing a potential employer is totally different from emailing a friend. So, where are your manners?