BigBlueButton is an open source web conferencing system that enables universities and colleges to deliver a high-quality learning experience to remote students.
Integration between Privatemsg, Views and Views Bulk Operations. Allows to create lists of private messages using Views and also provides optional Privatemsg UI based on Views.
The Permission Sets module adds an abstraction layer between the roles that are associated with users and the permissions that are granted by those roles.
Panels is a very flexible module, you can add almost anything to regions of your layout. Almost but not everything, until now, it was very difficult to add files, links, and images to panes. This module started as a way to add CCK fields to panes, but it was hard, so instead, I decided to use the FAPI and imitate some of the most popular fields. Currently, you can add Files, Images, Links, Text and soon Embedded Videos to panes.
It mimics CCK Fields but they are not CCK fields, Views won't be aware of them, and you can't extend or configure the fields you want to add.