Ads
Clipstream Video has been used for web advertising since 2001.
Here is a selection of advertising styles and implementations.

Video Email
Delivery of a video email. Plays inside media-enabled email clients. Otherwise viewer clicks and plays within browser.

Light page load DSloader sample.
Loads light 6 KB loader applet then waits for user-initiated click to play.

Light page load Fastloader sample.
Loads light 6 KB loader applet and checks speed. Autoplays if connection speed is good.

Autoplay
Same ad with regular applet playback

Forced playback
Ads wrapping a trailer. Ads have no controls but the trailer does.