New content on SharePoint workflows recently published on Technet for IT pros:

Deploy workflows   This article includes procedures for installing, deploying, and starting predefined workflows, SharePoint Designer workflows, and Visual Studio custom workflows.

Workflow basics   This article describes the concept of deploying and administering predefined workflows, SharePoint Designer workflows, and Visual Studio custom workflows. It also compares the three types of workflows to assist administrators in choosing a suitable workflow type to meet their business needs. This article has been updated with additional details about the deployment process and the deployment steps for all three types of workflows.

Configure global workflow settings   This chapter describes how to set global workflow settings for site collections including enabling user-defined workflows, allowing non-authenticated participants, and disabling automatic cleanup of workflow history.