I really like innovative technology. Lucianne.com links to a Popular Mechanics article about three new innovations in internal combustion engines.
The first is a diesel developed by Mazda which is quiet, clean, and efficient. The second is a variable compression engine developed by Infiniti, which can give either lots of power or great economy at will. And the third is a two stroke with a unique starting system developed by the Ski-Doo/Sea-Doo company. This is neat stuff, enjoy.