Have you heard of hotlinking? It’s the number-one method that bandwidth is stolen from you by other web designers, and it can cost you a lot of money. It involves creating a direct link to a website’s non-HTML files in such a way that these files are embedded on another person’s page.
For instance, imagine that you have created one of the best adult sites online. You have tons of images, and visitors love to come to your site. Now imagine that suddenly, though your user stats aren’t increasing, your bandwidth (the amount of data transferred from your site to viewers) usage is going up. Your server administration contacts you to tell you that you are delivering 40% more images now than you were last week.
Has your income gone up commensurately? No. Has the traffic served by your site gone up? No. What has happened is someone, instead of just ripping off your images, has decided to hotlink to them from inside his or her own website.
This means instead of saving your image in their own images directory, they are linking to the image where it is hosted on your site. At one time in the early, early development of the web, this was an...