The site should provide specific information about salary, benefits, and scope of work. Additionally, it's more economical to let an applicant screen themselves out than to expend resources interviewing them only to have them refuse your offer at the end because the salary or job didn't meet their expectations. The site should provide information on the recruitment, application, and selection process. Potential applicants are more likely to leave information if they understand what will happen with it. The site should make it easy to apply.
Most web recruiting sites offer an automated application system.
The biggest impediment to recruiting passive job seekers today is the requirement of an updated resume. Cisco allows passive job seekers to simply fill out an abbreviated profile questionnaire on-line. The site should be easily accessible and navigable. Visitors should be able to easily access the recruitment site from the main page. Speakers suggested a big button that says 'Jobs'.