A resume is a snapshot; the overall summary of what you as a potential employee bring to an organization in terms of talent, education and experience. Depending on the job, there are times where as an applicant you should highlight and accent one of these elements over the others.
For instance, the recent college grad would want to emphasize the "Education" section over experience, as the experience portion of the resume might be lacking. In this case, you might want to not only list your degree, school, etc., but you might also list classes that correspond to the job for which you are applying. For example, a paralegal applicant might list a Family Law class or a Torts class taken on his or her way to a paralegal degree or certification.
The seasoned applicant with many jobs and a plethora of experience in his or her arsenal might accent the "experience" section of the resume and go into more detail in terms of job duties. Since it is a resume and not an application utilize organizational features such as dashes or bullet points to keep it in logical order.
The resume should be brief, yet informative, conclusive, yet not in-depth. Mastering the art of making your resume the perfect snapshot and summary of your abilities is essential to the online resume. It is one component of your ticket to reeling in the employers that will access it online. Using key words that associate with your education, talent and skills enables the employer to use search optimization techniques to pick resumes that are the right fit.