Google has reported gross revenues of $5.51 billion for the quarter ended March 31, 2009, a 6 percent year on year increase. Compared with the last quarter, though, revenues are down by 3 percent. Google had a traffic acquisition cost of $1.44 billion, so net revenues were around $4.07 billion.

The companys net income grew by 8.9% to $1.42 billion, compared to $382 million in the fourth quarter of the 2008 fiscal. 

Q1-09 Details: Release | Financials | Presentation | Webcast 

Revenue Split:

– Google owned sites vs network: What’s interesting is that Google owned sites generated 67% of its revenues, at $3.7 Billion, up 9% year on year, and down 3% from Q4 2008. AdSense revenues were 30% of total revenues at $1.64 billion, a 3% decrease year on year, and quarter on quarter. Payouts to AdSense partners totaled $1.23 billion for the quarter.

– US vs International: around $2.88 billion of Google’s revenues – 52% of the total, were from outside the United States. Last quarter, 50% of Google’s revenues were from outside the US. Revenues from the UK for this quarter were $733 million – accounting for 13% of revenues. 

– Paid Clicks: Aggregate paid clicks, which include clicks related to ads served on Google sites and AdSense Partners increased 17% over Q1 2008, and 3% over Q4 2008. 

Employees and Expenses

There’s been a minimal reduction in the headcount at Google – down to 20,164 full-time employees worldwide, from 20,222 full-time employees at the end of last quarter. The company has seen a reduction in operating expenses – down from $1.65 billion from $1.52 billion: payroll and facilities expenses are down from $890 million last quarter to $774 million in this.