We have recently completed a piece of work with Salford City Council to migrate their user surveys away from SurveyMonkey and into their directory.
These short, optional surveys are now presented to users in a modal window, which pops opens after the user visits their 6th page on their website (configurable).
A cookie captures whether the user completed the survey or opted out. This expires after 30 days (configurable), meaning each user has the option of participating again a month later.
If you’d like to discuss similar functionality for your own website, please contact your account manager.