Building the Commons:
Integrating CC in Your Application

Nathan Yergler, CTOnathan@creativecommons.org

Jon PhillipsBizDev + Community Developerjon@creativecommons.org

Audience Assumptions

Software Developers

70/30
Web/Desktop

Developing Content Creation or Reuse Applications

What does Integration look like?

Flickr

Internet Archive

CC Publisher

What is Integration ?

Applying Licenses to Content

Publishing Metadata

Content/Metadata Consumption

Applying Licenses to Content

Selecting a License

Partner Interface

Simple Chooser

cc.js

Web Services

Partner Interface

Pop-up or iframe for web applications

Utilizes the same license selection rules as creativecommons.org/license

Returns a license URL, name to your application via HTTP GET

Partner Interface

example.com/appPartner Interface

example.com/app/exitGET ?license_url=...&
license_name=..GET ?exit_url=...

cc.js

Javascript widget for web applications

Currently in development

Simplified, straight-forward integration

Localized by CC partners

cc.js

cc.js

The Simple Chooser

Drop-down license selector

Optionally exclude licenses by attribute code

ie, ?exclude=nd

The Simple Chooser

Web Services

Provide access to the full licensing dataset

Localized questions for implementing your own version of cc.org/license

HTTP interface; take as little or as much as you need

But... requires more work to use.

http://api.creativecommons.org/docs

CC Publisher

Publishing Metadata

Metadata

Discovery is at least as important as licensing

Publishing metadata for works enables discovery (among other things)

Google, Yahoo both index basic CC metadata

CC Metadata

Copy-and-paste was important

Semantic web seemed the way to go

RDF/XML in an HTML Comment

so, so ugly

hidden to humans

hidden to parsers

easy to screw up

overly verbose

Microformats

rel="license" since 2004

Colocated with human visible markup

Concise

Problems:

Page level; what about audio, images, video, etc?

Scalability and interoperability of microformats

rel=license microformat

This work is licensed under Creative Commons Attribution

Wanted:

Metadata solution:

...for any page, fragment, link, embedded object

Colocated with human visible markup

Publisher and consumer friendly

Flexible, interoperable

RDFa

RDF

a stands for attributes

The mythical RDF-in-HTML is finally here

30 seconds of RDF

Triples:

Subject: always a URI

Predicate (verb): always a URI

Object: URI or literal (text)

One can say lots of things with these primitives.

And do things with what is said.

30 seconds of RDFa

Subject denoted by about attribute (defaults to current document).

Predicate denoted by rel (or rev) if the object is a URI.

Predicate denoted by property if the object is a literal.

See http://rdfa.info

CC Metadata Today

Publishing RDFa from the license chooser

Web services return RDFa

Looking for implementations:

audio, video, image sharing on the web that publishes RDFa

RDFa aware search

Commerce, and then some

Metadata hooks

cc:morePermissions

cc:attributionURL

cc:attributionName

Content/Metadata Consumption

Syndication / Aggregation

Specs exist for asserting licenses for RSS, RSS 2, Atom

Aggregators could easily display hints to users about content licenses

Metadata Browsing

Expose embedded metadata to users in a non-intrusive way

MozCC for CC metadata

Operator for microformats

MozCC

Flickr + Think Free

Flickr exposes license metadata through their API

Think Free office reuses content based on this metadata

Content creators gain greater exposure

Coming Soon...

liblicense

C library

Allows querying of license metadata

Provides pluggable architecture for embedding/reading licenses from files

Builds on XMP work for embedded metadata

Allows us to build license selection UI in a straightforward manner

GTK+ widget

Nautilus Integration

Thanks!

http://wiki.creativecommons.org/Integration

http://wiki.creativecommons.org/Developer

Click to edit the title text format

OSCON 2007: 25 July 2007

Attribution 2.5

Attribution 3.0 Unportedhttp://creativecommons.org/licenses/by/3.0/