Today when I went to my PWS on WU I noticed there is a banner from WU at the top inviting to participate in the survey, so I assume any WeatherCatter who uploads to WU can go to your WU site and participate. In the comment box at the end of the survey they ask how they can improve. I told them they have a habit of denying they have a problem on their end and then they fix it. I suggested they consider being a little more open up front to PWS owners.