Google reported revenue of US$5.54 billion for the quarter, which ended Sept. 30, up 31 percent compared with last year's third quarter.
Deducting the commissions Google pays to its advertising partners, revenue came in at $4.04 billion, slightly below the $4.05 billion consensus expectation from analysts polled by Thomson Reuters.
Net income was $1.35 billion, or $4.24 per share, compared with $1.07 billion, or $3.38 per share, in 2007's third quarter.
On a pro forma basis, which includes one-time items, net income was $1.56 billion, or $4.92 per share, exceeding analysts' consensus expectation of $4.75 per share.
"We had a good third quarter with strong traffic and revenue growth across all of our major geographies thanks to the underlying strength of our core search and ads business," said Google CEO Eric Schmidt in a statement Thursday.