Because videoactive advertising is new, there is no "best practices" template. New creative designs emerge every month. Web-based marketing must serve company goals and help build the brand. Different businesses require different creative approaches.
That said, we know good videoactive sites when we see them. You should see them too.

AnswersMedia

Double-Click Three Questions

Vision2Media

Seadoo

Evinrude

Get The Message

Dance Responsibly

Direct Buy

Xtra-Pine

Taco Bell

Geico

Tag Body Spray

http://golf.priceless.com

http://www.shaveeverywhere.com

UPS

http://www.better.tv

http://www.msdewey.com

Food Network: Ace of Cakes

Disney

McDonalds

Doritos