Google offers a look at new search engine, 'Caffeine'

SAN JOSE, Calif. -- Google lifted the lid a bit last week on a once-secret project, called "Caffeine," to improve its search engine.

Caffeine doesn't look any different from the old Google search engine, but it ranks results differently.

The search giant says the new architecture, which isn't finished yet, will "push the envelope on size, indexing speed, accuracy, comprehensiveness and other dimensions." more. . .