To get the best results one has to take care of the sourdough starter. Here is a guide to what happens in the sourdough culture and how to troubleshoot if things are not as bubbly as it were.
Resources
In this article I examine what hotlinking is and how to deal with it on your wordpress site. How and when to actively prevent hotlinking is to be decided case by case and here are some things to consider and a few easy ways to handle it.