From the project page:

Open source video solution.

Used on http://drupal.org, "This module stores the changes of a node into a field attached to comments allowing to display a kind-of activity stream on the node much like on drupal.org issues just with a lot less custom code."

The gist: "This module extends the functionality of the core 'file' field, adding new capabilities to the file upload widget, and providing a new extendible field formatter for displaying lists of files."

Schedule a time when a particular revision should go live.

"Workbench provides overall improvements for managing content that Drupal does not provide out of the box. Workbench gives us three important solutions:

• a unified and simplified user interface for users who ONLY have to work with content. This decreases training and support time.
• the ability to control who has access to edit any content based on an organization's structure not the web site structure
• a customizable

"This module performs additional validation when a node is created or updated by a user to require that a node's title, author, language, and CCK fields are unique within a given context." There are many different contexts including content type. So, for example, you could make sure that nodes of a certain content type have unique titles.

Included in Drupal 8 core, this plugin gives a nice javascript walkthrough on any page.

"The workflow module allows the creation and assignment of arbitrary workflows to Drupal node types. Workflows are made up of workflow states. For example, a workflow with the states Draft, Review, and Published could be assigned to the Story node type."

" Token filter is a very simple module to make token values available as an input filter."