Providing live technical support via phone, e-mail and/or instant messaging to survey respondents for others; providing live support via phone, e-mail and/or instant messaging for web-based questionnaire administration for others; verify and validate on-line and in real-time the accuracy and validity of collected web surveys for others; guarantee web survey data integrity for others through real-time observation by a live interviewer; provide on-line consumer, business-to-business, public opinion and political research services to others; administer web surveys for others; collect web survey data for others; interview web survey respondents for others; provide dyadic interviewer-respondent relationships for others; screen survey respondents for eligibility for others; record and screen verbatim responses of survey respondents for others; retain participation of survey respondents for others; and fielding interviewer-administered, interactive, and quantitative surveys for others over a world-wide computer network