Content Creation Applications
We have a list of existing applications that allow users to choose a Creative Commons license for content created within the applications. Any application in which a user creates "content" is a candidate, from multimedia authoring systems to weblog publishing software. We've made it easy to offer Creative Commons licenses to users via our satellite licensing interface.
The moment of content creation is the sweet spot for CC assignment. Imagine if the top 10 authoring tools (blogs, wikis, cmses, etc) all shipped with proper CC support... even if a small fraction of site administrators enabled this feature, the ammount of content which would be assigned CC licenses a decade from now would be staggering.
Open source application support for XMP and Creative Commons license info
XMP is an open, RDF-based format that can embed metadata in PDF files. Currently only Adobe applications support such embedding. Similar XMP and Creative Commons support should be added to Open Office and other open source document creation applications.
Update: Maarten Sneep has created a macro for embedding XMP in files created by pdflatex.
TODO Retire and split between embedding and content creation apps