PeerIndex is a London-based company founded in 2009 that calculates a user's influence on social media using their activity on platforms like Facebook, Twitter, LinkedIn, and blogs. It provides a normalized PeerIndex score from 1 to 100 based on a user's authority, audience, and activity. Authority measures how relevant and relied upon a user is, audience measures their reach, and activity measures topic-related contributions over time. It also provides a topic fingerprint and top topics and sources analysis to understand a user's areas of expertise and influence.

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PeerIndex
“Understand Your Social Capital”

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PeerIndex
• London based Company founded in 2009
• Winner of the European Tech Startup Awards 2011
• Influence Measurement Tool: Calculates the influence of the user in the
social web based on his/her activity on Facebook, Twitter, LinkedIn,
Quora and up to three blogs
• http://www.peerindex.com/
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PeerIndex Score
• Normalized score based on a
scale of 1 to 100
• Analyzes not only the activity but also the quality of the content
• Based on 3 Components:
- Authority Score
- Audience Score
- Activity Score
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3 Components
Authority Score
• How relevant is your activity to the community
• How much do others rely on your recommendations and opinion
• Rises whenever others like, comment,… your activity -> beeing popular does
not indicate authority
Audience Score
• Measures size of your audience compared to the audience of others
• Not people who “follow” you but people who are receptive to your actions
Activity Score
• Measures how much you do that is related to the topic communities you are part
of
• Calculated relative to your communities
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Topic Fingerprint
• Shows what categories of content someone talks a lot, or a little about.
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• Divided into 8 benchmark topics:

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Top Topics
• Blue bar indicates percentage above or below global average (100) that
someone has shared an article with that topic
• Green flag shows your resonance on that topic -> how frequently you
say things other people find interesting
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• Shows what topics someone talks about/the topics associated to the
URLs someone shares regularly.

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Top Sources
• Shows the sources of the URLs that you’ve shared regularly
• Shown by the number of mentions
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