Want some hairspray
with that Hairspray?

Today YouTube debuts its in-video advertising component. Across the bottom of a video screen, a Flash-based overlay will play while a clip is being watched.

The style is reminiscent of the format of TV commercials, with the exception of some web-savvy adoptions, including slight transparency and the ability to skip them.

If users find the ads too intrusive, a mere click will make them disappear. This move was an attempt to be "respectful of the community while offering something rich and engaging as a marketing platform," according to Director Eileen Naughton of YouTube's media and platforms, via The Guardian.

The overlay will appear over 20 percent of a video, 15 seconds after a clip has begun to play. It is approximately 80 percent transparent and will run for about 10 seconds.

Advertisers aboard thus far include BMW, The Simpsons Movie, Fox and Hairspray. The format will charge per 1,000 overlays served.

In June, YouTube began to intermingle sponsored fare into its related videos component.