This is a suggestion for a plugin development that is used for building an email list from your embedded YouTube videos.
I recently attended a webinar about a new plugin developed that overlays a couple features on top of a You Tube video that you have embedded on your website. It allows two things:
1. Overlay an optin form on the video at the time specified. It pauses the video at this moment and then resumes when the viewer either fills out the form or dismisses the form;
2. It also allows you to put a link on top of the video (like a link to an affiliate link, for example) at any point in the video.
It seemed like a powerful idea for getting more optins from your YouTube videos. I would use it in conjunction with the membership plugin.