With enormous pace, twitter is growing up with leap and bound in its number of visitors seems like that it soon would surpass everyone in numbers for unique visitors. It had though big yet not competitive unique visitors in Feb 2009, with 10 million mark visitors. In April, its unique visitors alone for America reached at 17 million.

In a recent report from .comScore there were whopping 32 million visitors worldwide for Twitter in month of April 2009, up from 19 million in March, 2009.  Twitter has passed away number of unique visitors Digg (23 million), LinkedIn (16 million), and the NYTimes.com (17.5 million) in monthly unique visitors, as surveyed by comScore.

And people who send their tweet through via their phones, desktop apps, or other Websites are not included into this list. Twitter.com is also now bigger than Bebo and Freindster. In April, Twitter added 13 million visitors that is more that 9 million for March. At this pace of adding visitors, Twitter must be causing concern for Facebook to Google everyone.