What are some disadvantages of mail surveys? Discuss ways of eliminating them.

What are some disadvantages of mail surveys? Discuss ways of eliminating them.
What are some problems as well as benefits of self-report surveys as a data-gathering strategy?
What are some techniques for improving response rates in surveys?
What are some considerations one must take into account in doing Internet surveys?
Be sure to include a title page, two pages for the body of your paper, and a reference page. At least two outside references (other than the textbook) are required.