As the media horizon has expanded - and the opportunities for plugging products have consequently multiplied - the ability of consumers to filter out advertising has increased.
Some are now plugging re-usable products.
Through IC technology, lighting manufacturers can directly plug Acrich2-based products into the wall without consideration of electrical conditions.
Radio and television talk shows routinely interview guests provided by public relations companies; the quid pro quo is that guests can plug products.
It's as if the movie's real goals of admiring scenery and plugging products were jeopardized by such a knotty concept.
That has always been an operating principle of most advertisers who plug products on television.
Teams of experienced users monitor the site for anyone covertly plugging products for an employer.
The Federal Trade Commission may have problems, too, with companies plugging products without letting their targets know they are doing so.
Of course, the television industry has long understood the value of plugging products during broadcast time.
Akira Kurosawa and Sophia Loren are also plugging products for the greater good of the pocketbook.