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Influence Tracker Dataset

Datasets regarding the Influence Tracker (http://www.influencetracker.com) service. The SPARQL endpoint can be found at http://www.influencetracker.com:8890/sparql .
Identi.ca

About Identi.ca is a microblogging service. Users post short (140 character) notices which are broadcast to their friends and fans using the Web, RSS, or instant messages....

You can also access this registry using the API (see API Docs).