From Semantic Universe:
Ruben Verborgh and Seth van Hooland have launched Free Your Metadata, “a demonstrator site for showing how even irregular metadata can have valued to others and how, if it is released rather than clutched tightly onto (until that mythical day when it is ‘perfect’), it can be cleaned up and improved using new software tools.
Read the Complete Article
Walk through the cleanup process using Google Refine.
See Also: Watch the 2:57 Video Introduction
Direct to Free Your Metadata Web Site
See Also: Interview: “Things clever people do with your data, Introducing ‘Free Your Metadata'” (via Fresh&Newer)
An interview with the “Free Your Metadata Developers”
See Also: Free Your Metadata on Twitter