This extension provides of a really simple an elegant way of translating web pages to your language. It uses translate.google.com services to translate, and the way it does it is simply excellent!. Just keep Ctrl key pressed while selecting the text you want to translate and it will display the translation in a bubble in-line.

Also it provides a menu to select the translation of the entire web-page or to open a form (like the one in translate.google.com) for real-time translation.

Highly reccomendable.

You can found the extension here: https://chrome.google.com/extensions/detail/jlhlebbhengjlhmcjebbkambaekglhkf

And Google Chrome, here: http://www.google.com/chrome/