Google Corporate Information - http://www.google.com/corporate/
Offers an overview of the company, a list of the features provides by the search engine, and the company technologies.

Wikipedia: Google - http://en.wikipedia.org/wiki/Google
Features information on corporate history, products, business policies and culture supplemented by criticism and links.

Google.org - http://www.google.org/
The philanthropic arm of the company. Lists its activities.

Google Watch - http://www.google-watch.org/
A criticism of Google; argues that Google's privacy policies are undermining the Web.

Style.com: Journey to the Center of Google - http://men.style.com/gq/features/full?id=content_422
Lengthy article by John Heilemann detailing the contribution of experienced managers and financiers to a company built on youthful inventiveness.

Unofficial Google Fan Club - http://www.ugfc.org/
Weblog offering news and information about Google and Google-related technologies and services.

Google Press Releases - http://www.google.com/press/
Contains contact information, external news items, press releases, a corporate overview, and an image gallery.

Economist.com - The next hot internet stock - http://www.economist.com/displaystory.cfm?story_id=2173573
"Google is now more than a business: it is a cultural phenomenon. But where will it be in a few years?"

Topix: Google, Inc. - http://www.topix.com/com/google
News on the company continually updated from thousands of sources around the net.

Google IPO Central - http://www.google-ipo.com/
Unofficial site about Google's IPO with news and discussion.