You learn something new every day. Jeremy's linkblog include a link to a data: URL image encoder. I'd never even heard of the data scheme.
The data: scheme allows data to be embedded within an HTML page (or other
document that supports URLs).
For example, take a look at the source of this image:
Neat, huh?
It's not very efficient since the embedded data can't be cached separately from the page, but it's still kind of cool.
The state is that great fiction by which everyone tries to live at the expense of everyone else. - Frederic Bastiat