Google has reported earnings and revenue that exceeded Wall Street's expectations for its first fiscal quarter, ended 31 March.

Google reported revenue of $3.66 billion (£1.83bn), up 63% compared to the first quarter of 2006. Deducting the commissions it pays to its advertising partners, Google's revenue was $2.53bn, topping the $2.49bn consensus expectation from financial analysts polled by Thomson Financial.

Net income came in at $1bn, or $3.18 per share, compared with $592.3m, or $1.95 per share, in last year's first quarter. On a pro forma basis, which excludes certain items, net income was $1.16bn, or $3.68 per share, exceeding the analysts' $3.30 earnings per share consensus expectation.

Company executives called the results "strong" in a statement.

Google-owned sites generated revenue of $2.28bn, or 62% of total revenues, while advertising partners generated $1.35bn.

Revenue from outside of the US represented 47% of total revenue, up from 42% in last year's first quarter.

Paid clicks on Google sites and in advertising network partner sites increased about 52% over the first quarter of 2006.

Headcount increased worldwide to 12,238 full-time employees as of 31 March, up from 10,674 full time employees as of 31 December 2006, Google said.