Choose the Settings command in the System menu at the right end of the menu bar. Click on the CMS tab. There's a new checkbox that allows you to enable the "watched" folder.
In a few seconds a new folder is automatically created in your Small Picture folder called watched.
Copy an image into the folder. Wait a few seconds (as many as 11 or 12).
A dialog should appear with the URL of the image.
You can use it anywhere you would use the URL of an image. It doesn't even have to be in Fargo.
People who use the OPML Editor for content management will recognize the feature.
They don't have to be images. They could be MP3s, PDFs, whatever.
