Question: what are the advantages and disadvantages of collecting survey and opinion poll data online?
Answer: Increased Response Rate. The low cost and overall convenience of online surveys bring in a high response. ... 
Low Cost. Collecting data doesn't have to break the bank anymore. ... 
Real-time Access. ... 
Convenience. ... 
Design Flexibility. ... 
No Interviewer. ... 
Survey Fraud. ... 
Limited Sampling and Respondent Availability.