Matthew Gertner and I have collaborated again to bring you a Technorati Greasemonkey script
It queries the technorati database (via a proxy that protects my technorati API key), and adds a block of links to blogs linking to the page you're on. It loads the links asynchronously, which is clever and nice. To make the links visible, click on the little green speech bubble, which appears at the top of every page, once the information is available.
Enjoy.