You heard the image. Don't do it.
An item on one web-service that is requested by another web-service, usually an image. This isn't when an image is actually a potholed
This is not only impolite (it eats up your victim's bandwidth), it's almost always a really bad idea. A Hot Linked
item may have been removed by the original host (this is a big problem with YouTube
links). The original host can be undergoing a performance problem. The original host may have changed its linking policy. The original host may be gone.
The original host may have substituted a different
(and often obscene) image for the one at that URL ... The list of possible badness goes on and on.
Luckily, this Wiki provides a way for people to upload images that skips a lot of those badnesses. See the Media Uploader
on the Tools menu.