Enter this FireFox plugin that uses a Greesemonkey user script (created by AADL Superpatron Edward Veilmetti ) to insert a bit of DMHTL code into Amazon.com pages so you can see if the title is available at your local library.
Honestly, as a frequent user of Amazon.com I'm blown away by this and would love something like this for our catalog as well. -- And it's just another reason to love FireFox 1.5 even more :) -- but as cautionary observer, I wonder how Amazon feels about having content inserted on their page for display.
Anyway... with so many new ideas and amazing web 2.0 stuff being developed these days this latest break through has really got me thinking ... I wonder it if would be also possible to develop a Amazon.com script that would automatically apply your Amazon.com affiliate # to any purchases so that libraries that participate in this program would automatically get referral fees? Now, that might get Amazon's attention.
PS: See it also over at SJCPL at Tame the Web