If you’re already using the Google toolbar on your browser, or mostly browse sites that use Google’s own persistent translation toolbar, you won’t need this bookmarklet. For those of us looking for quick translation of any web page out there, the bookmarklet linked at the Google Operating System post is a nice and easy fix.
While this bookmarklet can work with any kind of text on a page and automatically detect the language, it doesn’t automatically convert to a default English language. For that, you should check out the To English bookmarklet that’s won its way into our hearts (and bookmarklets folder).
Google Translation Bar [Google Operating System]