What are some of SOA / BPEL best practices?

Looking for some resources on SO开发者_C百科A / BPEL best practices. Specially BPEL.

1. A quick Google search reveals that Oracle provides SOA Best Practices - The BPEL Cookbook which is an online article collection of some best practices

2. A random book search revealed BPEL Cookbook - subtitled Best Practices for SOA-based integration and composite applications development: Ten practical real-world case studies combining business … management and web services orchestration, the interesting about this is its publishing date, just 12 days ago.