Is Google+ the First Real Competition for Facebook?

Google+, the new social-networking service from Google (NASDAQ:GOOG), has already reached 25 million visitors in less than a month, more than either Facebook or MySpace (NASDAQ:NWSA) when they were just getting started. Google+ had 6.44 million visitors in the U.S. as of July 24, while India accounted for 3.62 million visitors. Those figures do not include mobile usage.

Hot Feature: Here’s Why Google+ Means Serious Money.

The social-networking tool was announced and made available to the public in late June as part of a limited “field study“. The service is Google’s (NASDAQ:GOOG) attempt to steal some of Facebook’s 750 million users. Facebook currently accounts for roughly 13% of the total hours people spend online, the most of any site, while Google comes in second place with a 10% share.

The average number of days U.S. visitors used Google+ rose 39% in the week ending July 17 and 11% in the week ending July 24, adding about 5 million visitors in less than a week to reach its last reported tally of 25 million visitors.