This article reviews the features of the IBM i Performance Data Investigator.
Visit this bitbucket repository for authoritative documentation for IBM i Open Source Software.
This IBM Support web page is a great starting point for the IBM Advanced Job Scheduler for i.
This link takes you to the web page for the IBM Power Systems Technical Webinars. You can find information about upcoming webinars as well as replays for past sessions. This is a great resource to keep current on the latest technical topics.
This developerWorks web page has all the latest information for BRMS.