Choosing a Career can be a challenging task. Money tends to be the first consideration. I wanna be rich! This question naturally leads you to careers such as being a doctor, lawyer, stock broker, CEO, etc. These are high-paying careers. But, if you are going to commit over 33% of your life to a career - it should be one that you will enjoy. A better consideration is to start by thinking about what you enjoy doing. Mi-Career.com is a tool that helps you find a career, based on your personality!
Once you have identified 5 to 10 potential careers, you should research those careers. This site list the best and worst. Another resource is Career List
Once you have answered these questions for each career, you should be able to narrow your selection down to 2 to 4 potential careers. Once you have your top 2 to 4 options, you should learn more about the careers. You should consider talking to individuals working in the area. You should consider volunteering at companies where you can learn more about the career. You should also, identify college majors and/or the educational requirements necessary to begin working in the career. By now, you should be able to narrow your selection down to 1 or 2 options