Unfortunately, many of them are deciding 'To Flash' before they've really considered the implications. They think they should Flash because they can. These designers should take a serious step back and consider whether that fancy Flash navigation bar or that four minute Shockwave presentation about their line of tea kettles is really necessary. Remember, you are not selling multimedia, you are selling a product or service.
Time is indeed money especially if someone is waiting for a multimedia application to download.
Unfortunately, many designers are determined to add that four layered navigation bar and that 'History of Tea Kettles' production to their Website. In the light of this reality, I've decided to add my two cents worth of advice on how to better create Internet multimedia. So here they are for whatever they are worth. It seems simple, but I find this basic rule of design to be the one most ignored. Many designers will tell you they don't have to do much planning or preproduction.