I have recently become interested in hotlinking. I know why it is important and I need to do something about it.
My searches on the topic have produced the following.
alistapart.com – Smarter Image Hotlinking Prevention
A more detailed solution and explains why a “Quick Fix” isn’t enough.
altlab.com – So You Have Decided to Hotlink and Steal Bandwidth
This page has a form on a page to test your hotlink solution.
robinsblog.com – Preventing Hotlinking
This is the site where I learned how to remove my content from the Google index.