You may have taken part in a survey when you made an online purchase.  Usually after you have completed your purchase a question will come up that asks you if you would like to take a quick survey.  There may have been a link that then directed you to the survey.  Online retail companies are able to create these surveys using survey software and it helps them to keep in touch with their customers.  Online retailers need to know what makes their e-retailing so successful or what information they are missing in order to be successful.  Survey software is quick and easy to use and you can make your surveys so they only take a few minutes to complete thereby keeping it easy for the participant.