Participating in some webnars from Amazon, we can see a online survey in a
box/part in the screen. Probably this feature was implemented in the code,
so I thought to use a survey open source project, called Limesurvey.
After, a simple Google Form, or any other tool.
So, the best (IMHO) is to share a link to the survey, that is opened in a
frame, in the same way that "Share a video".