Meant to post this a couple weeks ago, and now SEW and Corante have gotten the word out: Babelplex is a new tool that allows you to search side by side results in two languages.
This is the first search based project for Babelplex's author, HK Tang. Born in Hong Kong and educated at the University of Washington, Tang tells me "For Babelplex, I've realized if you simplify search down to the simplest equation there are two sides. Output which Google has solidly nailed down, and input which is very relevant when searching in foreign text. I've observed users who are limited by the language of their keyboard would use Yahoo! Directory rather than Google Search to find International pages. Also, my family is bilingual, so that has some influence on the inception of Babelplex."