What do you think of this example (from the Whitney Museum) of incorporating video into a site so that the calls-to-action / site goals are “buddied” around the video? It's simple, but it's something that many sites overlook in the development process, and I think it's quite tempting, since the calls to action (see, subscribe, join) are within view and accessible throughout the duration of the video.
Wouldn’t you love to test this to quantify the impact of the “buddy system” on conversion rates vs. no buddy system? Seems like a perfect opportunity to use Google's Website Optimizer.
If you already have tested this, LET US KNOW what you found.
Enjoy the weekend!