2009  is coming to end, and it is time to know which Google products were most popular in 2009 . I guess these estimates will not be change to the end of the year. According to the Quantcast Google’s homepage in the first place with 141,188,562 visits from the USA, then Google Maps with 43.328.640 ,and in the third place  Google Images with 30.740.658 visits. Then Google Mail, Google Books, Google Video, Google News, Picasa Web, Google Docs and Google Earth.

Quantcast estimates are not 100 % correct, because Google and its subdomains are not quantified. But the number can be considered as correct results. Below,the screentshot of Quantcast estimates for Google (last 5 months)

Quantcast

1. Google Homepage

2. maps.google.com

3. images.google.com

4. mail.google.com

5. books.goole.com

6. video.google.com

7. news.google.com

8. picasaweb.google.com

9. docs.google.com

10 earth.google.com

Top Google Product in 2008