We've posted a lot of documentation including presentations, white/red papers, data sheets, and other useful collateral on Oracle.com, a public site. If you are seeking detailed information on a particular topic, this is a good place to start. It's a bit hard to find so I'm posting it here.
This resource library contains collateral on general PeopleTools, user experience and interaction--including the PeopleSoft Interaction Hub, platforms, security, life-cycle management, reporting and analytics, integration, and accessibility. There are also links to video feature overviews, viewlets, and appcasts, and the latest release information.
There is much valuable information here, so if you need information about PeopleTools and related information, start here.