What's the most common mistake that job hunters make when writing their resumes?

The most common mistake, by far, is filling up the resume with a laundry list of functions and responsibilities that you've held in your past jobs as opposed to the specific accomplishments that made a difference in the companies you worked for. You can never assume, simply because you had a particular responsibility or performed a particular task, that the person reading your resume will automatically think that you can make a contribution to his or her company.

A second common mistake is not being specific enough when it comes to the skills you possess. Mentioning your "computer skills" is no longer enough, for example. Companies - and the resume-scanning software now being used - are interested in the specific programs with which you're familiar.