Oracle Database 12c offers the latest innovation from Oracle Database Server Technologies with a new Multitenant Architecture, which can help accelerate database consolidation and Cloud projects.
The primary resource for Partners on Database 12c is of course the Oracle Database 12c Knowledge Zone where you can get up to speed on the latest Database 12c enhancements so you can sell, implement and support this.
Still, the resources and material on Oracle Database 12c can be found all around Oracle.com,
but even hidden in AR posters like the one on the left.
Here are some more useful resources