“Miniature radio ads, spanning just a few seconds in length, are a hit in Hollywood, says market leader Clear Channel Communications Inc., which launched the spots known as blinks and adlets last year.

Homer Simpson’s unmistakable “D’oh!” or “Woohoo!” followed by the familiar tagline “Tonight on Fox!” for example, has been a popular two-second ad — known as a blink — for Fox Broadcasting.

Unlike longer ads, which run during minutes-long commercial breaks, the blinks and adlets are slipped in between songs.

Clear Channel declined to disclose pricing, but one ad executive said five-second adlets typically fetch as much as 20% of 60-second ads, which cost about $800 in major markets, and two-second blinks cost 10%.”  

— From latimes.com