A blog post written by Azeem Azhar (@azeem), Founder of PeerIndexLast week we asked you what you’d like to know about PeerIndex and if you’d started using the service and needed anything explained.PeerIndex measures your status and reputation across the social web. The social ranking service that won The Grand Prix award at this year’s Europas offers insights for social media users and brands about topic communities and influencers. Your reputation (or ‘social capital’) is calculated by looking at various factors including how your ideas and opinions spread, how other people interact with you, how interesting other people find your content, and the quality of your engaged network.Most importantly PeerIndex looks at how authoritative and interesting other people think you are, as well as what topics and categories drive that interest. Our algorithm values people who produce fresh content, which is valued by their friends and contacts online, and is then spread beyond that initial network.We are mapping out the social web, allowing you to discover new information on people, places and specific topics. We track whose content you are most likely to share, and who is most likely to share your, to analyse your resonance.We have taken a simple concept of figuring out who was the best source of a particular topic (e.g., who do you listen to to learn about?) and migrated the insights into an algorithm that focuses on understanding how you impact the social web with your conversations. Rather than listening from a single point of view, we watch how you converse with others and the ripples you create. From those ripples, you can see how people respond and react to you – getting a better understanding of your influence.Another thing to bear in mind is that our influence formula is a rolling analysis run over 120 days, this is a sliding window that goes backwards from the date of calculation