3.Have somebody not involved in a decision making process conduct the screening and report only information that is legally permissable for hiring decisions.
4. If an applicant's social networking page is closed to the public, do not request the candidate to add him/her as a friend. The applicant may be pressure to accept the request because he/she may feel that the hiring decision will depend on it.
5. Always have proper documentation showing that the hiring decision was non-discriminatory.