The Improving Projects blog from Huge IO (UK & Ireland) is primarily about products, organisations and projects... and how to improve them. As well as musings on agile processes, software engineering in general, and methods like Kanban and Scrum, there's advice here too for users of process planning, execution and improvement tools - and the metrics they can provide. https://uk.huge.io
There's a new spec for Folders in xProcess that should be released shortly in the v3 programme. The new feature let's you define a hierarchy of Folders and it clarifies the difference between folders with "explicit" members (the tasks are in the folder because someone put them there) and "implicit" members (the tasks are there because they fulfil the criteria for the folder - usually that they are in the appropriate category.
Email me or post a comment below if you would like a preview of this spec.