Introduction to workflow

http://en.wikipedia.org/wiki/Workflow

http://www.e-workflow.org/bookstore/introduction_to_workflow02.pdf

http://blogs.msdn.com/davegreen/archive/2005/09/17/470704.aspx

http://www.aboutworkflow.com/WorkflowTutorial/index.htm

http://www.sqldts.com/287.aspx

http://www.e-workflow.org/standards/index.htm

Workflow Control-Flow Patterns

http://www.workflowpatterns.com/documentation/documents/BPM-06-22.pdf

http://www.workflowpatterns.com/patterns/control/index.php

http://www.workflowpatterns.com/documentation/index.php

http://en.wikipedia.org/wiki/Workflow_patterns (Good)

BPEL

Is BPEL the same as BPM, workflow or integration?

http://searchwebservices.techtarget.com/ateQuestionNResponse/0,289625,sid26_cid565868_tax292928,00.html

Service-Oriented Architecture-Concepts, Technology, and Design (book)

web Services Platform Arthitecture - SOAP, WSDL, WS-Policy, WS-Addressing, WS-BPEL, (book)

Implementation

Deploy distributed business processes with windows workflow and web service

http://msdn.microsoft.com/msdnmag/issues/06/10/webserviceworkflows/

http://blogs.msdn.com/publicsector/archive/2005/10/27/485691.aspx

Orchestrating Web Service

http://www.ftponline.com/xmlmag/2002_06/magazine/focus/sjohnston/default.aspx

Orchestration and Choreography

Service-Oriented Architecture - Concepts, Technology, and Design

Business processes and workflow in the Web services world

http://www.ibm.com/developerworks/webservices/library/ws-work.html