Keep in mind, our Survey Matching Engine uses your demographics to match you with a survey that you are most likely to successfully complete.
The surveys may only remain available for a limited time until the survey quota is met. Our research partners have specific quotas that state how many completed surveys they need. Once we reach that quota, the survey is no longer available. Sometimes this can happen within minutes of the survey becoming available.
In order to see surveys as they arrive or unsubscribe from getting survey invites via email, you may make modifications in your Preferences under "Email Schedule".