India has highest net usage followed by China and USA

According to the latest report from Internet and Mobile Association of India (IAMAI), the number of internet users have crossed the landmark of 100 million. It was the month of September when India crossed the line and became the third highest member on the list of maximum net usage in 2011.
The list is topped by China with 485.0 million followed by USA at 245 million and then India with 100 million. Japan and Brazil are certainly not far behind with 99.2 million and 75.9 million respectively.

Rank      Country  Users (in million)

1              China     485.0

2              USA      245.0

3              India      100.0

4              Japan      99.2

5              Brazil       75.9

As on June 2011      Source: Internet World stats