BPMN Specification Releases:

• BPMN v2.0
• BPMN 2.0 by Example: non-normative OMG document with BPMN 2.0 examples
• BPMN 2.0 Poster
• BPMN v2.0 Beta 1
• BPMN 1.2
• BPMN 2.0 RFP: Request for Proposals for version 2.0 of BPMN
• BPMN 1.1: OMG Specification, February, 2008 (PDF 3,372K)
• BPMN 1.1 Poster
• BPMN 1.0: OMG Final Adopted Specification, February 6, 2006 (PDF 2,968K)
• BPMN 1.0: May 3, 2004 Specification (PDF 2,705K)

BPMN Books, Articles, and Papers:

• Feature: BPMN 2.0: The emerging star of business process modeling
  by Alan Earls
• Process Driven Modernization in Insurance
  by Jason Dokken, Principal Global Architect, Insurance, TIBCO Software Inc.
• BPMN Method and Style: A levels-based methodology for BPM process modeling and improvement using BPMN 2.0
  by Bruce Silver
• Mastering the Unpredictable
  How Adaptive Case Management Will Revolutionize the Way That Knowledge Workers Get Things Done
  by Keith D. Swenson of Fujitsu, long associated with the Workflow Management Coalition, joined by contributors including Max J. Pucher of ISIS Papyrus, Dana Khoyi of Global 360 and Nathaniel Palmer of SRA International, Inc., BPM.com and the Workflow Management Coalition.
• Mapping BPMN to BPEL Example - (PDF 386K)
  by Stephen A. White - IBM, February 2005
• Introduction to BPMN - (PDF 359K)
  by Stephen A. White - IBM, May 2004
• Workflow Patterns with BPMN and UML- (PDF 496K)
  by Stephen A. White - IBM, January 2004
• BPMN and Business Process Management - (PDF 884K)
  by Jog Roj & Martin Owen - Popkin Software, September 2003

BPMN Notation Graphics:

• Core BPMN Elements
• Complete BPMN Elements
  • Activities
  • Events
  • Gateways
  • Connections
  • Artifacts
  • Swimlanes

Frequently Asked Questions:

• See FAQ.
• Wikipedia Entry

BPMN Implementations:

There are 73 current implementations and 3 planned implementations - (updated December 15, 2011)

See here for a list of Companies that have an implementation of BPMN

Stephen A. White - IBM and Derek Miers - BPM Focus, September 2008

Charter:

A standard Business Process Modeling Notation (BPMN) will provide businesses with the capability of understanding their internal business procedures in a graphical notation and will give organizations the ability to communicate these procedures in a standard manner. Furthermore, the graphical notation will facilitate the understanding of the performance collaborations and business transactions between the organizations. This will ensure that businesses will understand themselves and participants in their business and will enable organizations to adjust to new internal and B2B business circumstances quickly.