Congratulations on your knowledge in even considering how long a resume should be! This question puts you miles ahead of your competition. Most people do not consider length in terms of writing a good resume. The length of a resume is specific to the person and the situation. Here are a few things that will assist you in determining your personal needs in terms of resume length.
You might consider a one-page resume if:
You may want to think of a two-page resume if:
A three-page resume may be a consideration if:

Julie,
Cover letter looks great and the resume has just one more change. Once again, great job. If I knew how good your service was, I would have used you a long time ago. I'm embarrassed to even show people my old resume now. I'll be sure to refer your service to my friends in the future...
Thanks,
Joy