I think this is wonderful! I can’t wait until this extension is available for all browsers…
Browser Extension Encourages Amazon Searchers to Head to Their Library by Matt Ennis (published online by Library Journal on Jan. 2, 2013)
It reminds me of an idea I had when I was in grad school for a location-based mobile app that would integrate nearby library holdings and databases with online search results – so that whatever you’re searching for, you’d see what’s online side-by-side with the resources are close by in the nearest library.