I have been using the free website thumbnail service from Shrink The Web on my dog agility search website Googility since I launched it. It is quick and easy to use and it adds a lot to the look of the pages.
I had created a simple Django template tag for inserting the little snippet of HTML needed by their service.
Recently they asked me to add support for their advanced features to my template tag. I used this opportunity to convert my templatetag to a Django application. This mostly makes it a lot easier to install but it also let me to bundle tests and an example template with the template tag.
I kept the existing shrinkthewebimage template tag and added a new tag called stwimage to enable the new features.
I'm hosting the example page included in the package here so you can see how the template tags work.