Avoid being vague If you have references include them. Dont say available upon request. If you have gaps in employment explain them clearly. They will probably come up in the interview anyways. Being prepared in advance by giving complete information in your resume is better than being caught off guard in the interview or worse skipped over all together.
Make your resume original Make sure your resume stands out from the crowd. Dont be afraid of trying something different or breaking from the mold. Sometimes a little creativity can garner enough attention to get your resume read which can make all the difference. Dont overdo it though. Being wacky or silly may be a part of your personality but usually is not a desirable quality in the work place. Photos are usually a bad idea as well. Be creative but keep it simple to avoid drawing attention away from what is really important.
No contact address is available. If the service does not have a physical location they may not be a suitable option for you. The chances are they are more into mass production of average documents. Numerous resume mills employ non-skilled individuals overseas to create these documents. They get hold of your current resume embellish it with the information available from the questionnaire and place it in a standard format.
There are millions of resumes being uploaded to job sites and because of this job sites have an ongoing need for more and more web servers. Job sites earn revenue from recruiters and employers that are subscribers and not from job seekers so it makes sense to eliminate this cost and pass it on to the resume website provider. Since people manage multiple resumes in their profiles to apply for different jobs it would be better for everyone if job seekers had multiple links to different resume pages instead of resume PDFs. The storage cost to job sites is eliminated and job sites can reduce their fees to subscribers.
The resume that lands you the job interview isnt a simple listing of your past duties or work experience. It has to convince readers that you have the required skills and abilities to exceed the expectations of the position so your resume should be structured in a way that arouses employers interest in you and gives them reasons as to why you are more qualified than others while encouraging the employer to get in touch with you for an interview.