The Internet search giant’s sales jumped 25% in the third quarter from a year earlier. The knock against the company is an over-dependence on web advertising, but it is finding new growth.  The market for ads on mobile devices is young, but it is already reinvigorating Google.

Google reported revenues of $7.29 billion for the quarter ended September 30, 2010, an increase of 23% compared to the third quarter of 2009. Google reports its revenues, consistent with GAAP, on a gross basis without deducting traffic acquisition costs (TAC). In the third quarter of 2010, TAC totaled $1.81 billion, or 26% of advertising revenues.

International Revenues – Revenues from outside of the United States totaled $3.77 billion, representing 52% of total revenues in the third quarter of 2010, compared to 52% in the second quarter of 2010 and 53% in the third quarter of 2009. Excluding gains related to our foreign exchange risk management program, had foreign exchange rates remained constant from the second quarter of 2010 through the third quarter of 2010, our revenues in the third quarter of 2010 would have been $9 million lower. Excluding gains related to our foreign exchange risk management program, had foreign exchange rates remained constant from the third quarter of 2009 through the third quarter of 2010, our revenues in the third quarter of 2010 would have been $169 million higher.

Google keeps adding employees:  Full time employment accounted for 23,331 versus 21,805 in Q3 2009. Source:  Google Earnings Release