http://influencenetworks.org/ http://influencenetworks.org/ may be close to what you talk about: "Influence Networks is an open-source, collaborative directory

http://influencenetworks.org/ http://influencenetworks.org/ may be close to what you talk about: "Influence Networks is an open-source, collaborative directory of relationships between people, institutions and companies. Each relation has its own level of trustworthiness, so that facts can be distinguished from noise."