The US Patent Office has issued Google two more patents.
One patent, for a similarity search engine - to check duplicate content - was first filed in 2001.
The other, Google's Digital Mapping Systems patent, describes 'various methods, systems and apparatus for implementing aspects of a digital mapping system'.
The similarity engine has had variations filed by IBM and Hitachi, according to a report by VNUNET.
Introducing... ClickZ Live!
SES Conference & Expo has merged with ClickZ to bring you ClickZ Live! The new global conference series takes on the identity of the industry's premier digital marketing publication, ClickZ.com, and kicks off March 31-April 3 in New York City. Join the industry's leading tech-advertisers in the advertising capital of the world! Find out more ››
*Super Saver Rates expire Jan 24.