Below you will find links to query forms we guessed the research community might be interested in. All of our data is open and available to SMW-based queries (and even exportable to formats like RDF and CSV), but if you'd like help constructing a query you can email akozak AT creativecommons DOT org.
The Full License Set
This database contains only the BY-NC-SA licenses. Every part of all six of the Creative Commons licenses in the CC License Suite is contained within the BY-NC-SA license. Thus, the database is an effective tool for researching and comparing all the licenses.