Do not include potentially discriminating information such as gender, age, race, religion, political affiliations, etc.
Do not include references as a part of your resume. Wait until you are asked to provide them and then include a list as a separate document along with your resume. A reference list should include the name, professional title/position, address, phone number and e-mail address of each person. Don’t forget to put your name at the top.
Do not put your social security number on your resume, even if asked to provide it. Your resume is not the place to provide this information.