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Google+ users might see their Klout scores go up Tuesday. The social media ranking company Klout has built a scoring model to calculate activity from Google's 5-month-old social network.

Klout — which measures users’ online influence — started allowing users to add Google+ to their Klout dashboards on Sept. 22 shortly after Google released Google+ API. Now the San Francisco-based startup has injected its measurement system with the new Google+ scoring model.

Some users saw their scores significantly increase. Myspace co-founder Tom Anderson's score jumped from 64 to 77. Lesser known active users experienced similar boosts. Google TV employee Erica Joy's score rose 62 points to 73, and nature photographer Tamara Pruessner's score elevated from 11 to 67.

Klout told Mashable it's taken two months to reach the desired amount of registered Google+ users to accurately create the scoring model. "Once we have a critical mass of users, our science team dives into their data to build a comprehensive and accurate new scoring model for that network specifically." said Megan Berry, Klout's marketing manager.

No scores will decrease based on Tuesday's changes and Klout will measure only public posts, Klout wrote Tuesday in a blog post. Sixty-two percent of Google+ users who connected their accounts to Klout are active on Google+ and "should see it affect their score based on their ability to drive action on that platform."

“We have always believed that influence was the ability to drive people to actions and Google+ has great signals such as +1s and comments,” CEO Joe Fernandez told Mashable in September. “One thing we have noticed is that the conversation frequency and quality on Google+ really sets it apart from other platforms.”

Klout has integrated 12 social networks to users' dashboards. The service so far factors in Twitter, Facebook, Google+, LinkedIn, and Foursquare. Klout is still building scoring models for YouTube, Instagram, Tumblr, Blogger, Wordpress.com, Last.fm and Flickr.

Update: Klout plans to add Quora, Yelp, Posterous, Livefyre, Disqus, bit.ly and other services, says Berry.

BONUS: What Klout's New Topic Pages Look Like

Klout released a feature in September that lets users gain insights on top content influencers as well as users who have received the most +Ks for respective topics.

To populate a user's Topic Pages (see screenshots below), Klout analyzes the user's public content.