Aside from being a powerful search engine, and ignoring its current omnipresence makeover, a cool thing about Google is never knowing how the logo will surprise you. Since for many the Google homepage means the start of their day, the creative methods of incorporating artwork into the standard logo can really set a tone of creativity. Usually the graphic is changed up to mark a special occasion or event, though sometimes a new one just seems to pop up out of nowhere.

There are probably exhaustive archives from day one and huge groups of followers who track every version, but here are a few of my recent favourites. A Houdini version, done in the classic magic show poster style, an interactive version to do some deep sea diving in honour of Jacques Cousteau and Jim Henson's 75th birthday graphic, a wacky assortment of Muppets and buttons that do who knows what