Google Plus saw 20 million visitors in first 3 weeks: ComScore

Social network tool Google Plus has received 20 million viewers in the first three weeks of its operation, according to ComScore, which monitors web behavior.

After the US which had 5 million viewers, India came in second with 2.8 million viewers clicking on the latest venture by internet search engine Google. UK, Canada and Germany followed the top two to make in the top five.

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"It's fair to say the initial market response has been very positive overall," Andrew Lipsman from ComScore, wrote on the company blog, adding, "What is also interesting about the rapid growth of Google+ is its proliferation on a global basis."

Google+ is a networking forum where users can create "circles" of friends to share posts. It is accessible by invitation only.

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ComScore stressed that its survey of the first 21 days (June 29, 2011 to July 19, 2011) of Google+ is for visitors, not users. It also excludes usage via mobile devices.

Lipsman described the trend as "extraordinary" but noted that Google already had an existing visitor-base as well.

"It would be difficult to think of many sites that reached such a large number in such a short period of time. That said, Google does have a built-in visitor base of more than one billion to work with, so there is clearly potential to convert a high number of users to its new social tool - even if it is still invite-only," Lipsman said on the blog.