Google shares top $400 threshold
Shares in Google have risen above $400 each for the first time, capping a strong period of growth for the internet search firm.
The latest of these is Google Base - unveiled on Wednesday - which will enable people to search for different information collected from consumers and businesses.
Other recent initiatives include a plan to supply miniature satellite maps to mobile phones as well as a controversial online library service providing digital prints of books.
The market has also been encouraged by Google's financial performance.
The company reported a sharp rise in profits in the last quarter, as net income rose to $381.2m (£215m) from $52m in the same period last year.
Sales in the three months to the end of September totalled $1.57bn - 96% higher than the same period in 2004.
Most of the Google's revenue comes from advertising sales.