The third-quarter profit grew from $US381 million ($A501 million) in the same period last year, a 92 percent rise.
"Our third-quarter results are a testament to the strength of our network of advertisers and partners, as well as our continuing focus on users," said chief executive Eric Schmidt.
"In addition, we continued to forge significant partnerships with companies such as eBay, Fox Interactive Media, and Intuit that will be of great value to all involved."
Google has been charging past its rivals like Yahoo in the market for Internet search, while garnering more revenues from "sponsored" advertising, which gives users corporate links related to search terms.
Revenue from Google-owned sites amounted to $US1.63 billion ($2.14 billion) in the quarter, or 60 percent of total revenues. This represented an 84 percent year-over-year increase.
Revenues from Google's partner sites grew 54 percent to 1.04 billion dollars and amounted to 39 percent of all revenues.
Google has been expanding its offerings with online word processing and spreadsheet services, trying to bring more functions to the Internet in a challenge to software giant Microsoft.
It also recently agreed to pay $US1.65 billion $A2.2 billion) in stock for the video website YouTube as a well-reasoned financial gamble.