Oyster Chrome Extension
This Chrome Extension tells you whether or not the current book you're looking at on Amazon is available on Oyster. If so, it'll show the Oyster logo in the omnibox and clicking it will take you to the book page on Oyster. Yay!
How to Install
From the Chrome Webstore
You can install the extension from the Chrome Webstore here.
To install locally, download this, open up
chrome://extensions in Chrome and check the
"Developer Mode" checkbox.
Next, click "Load unpacked extension..." and navigate to this directory. Select that, and you should be good to go.