Under active development

Variable module provides a registry for meta-data about Drupal variables and some extended Variable API and administration interface.

This is an API module so it must be installed only when other modules require it.

Module Developers: Please declare your variables.

Add-ons for module developers here: Variable Extra

This is a nice introduction to the module by Lullabot, Module Monday: Variable.

¿Drupal 8? #2146779: Port Variable to Drupal 8

Why?

• So other modules can know about your module's variables and they can be translated, exported, used in views, etc.
• You'll get automatic variable edit forms, tokens, access control and uninstall for free
• Your module's variables will be allowed for Variable Realms being able to get values for each language (Internationalization) or Domain (Variable Domain)

Checks spelling for Text Review's text sources, such as content and comments.

This module enables you to create arbitrary Workflows, and assign them to Entities.

Workflows are made up of workflow states. Transitions between states can be allowed per role. For example, a workflow with the states Draft, Review, and Published could be assigned to the Story node type. Only users with role 'chief editor' can set Stories to the published state.
You can set up the Workflow to alter states from form, page, comment, a special block, and a special workflow tab.
Additionally, the submodule Workflow Access allows you to manage view/edit/delete permissions for content types per User role and Workflow state.

Privatemsg allows your site's visitors to send private messages to each other. Perfect for community oriented sites, such as forums and social networking sites.

A Drupal module to create advertisement blocks, create advertisement campaigns and view advertisement statistics.

Provides the ability to create manual redirects and maintain a canonical URL for all content, redirecting all other requests to that path.

Features

• Common API for loading, saving, and deleting redirects.
• Case-insensitive redirect matching with a hook to allow other modules to narrow-down the candidate redirects.
• Redirect counter and last used timestamp, with automatic cleanup of inactive redirects. (Provided by Redirect Metrics in D8)
• Integration with Drupal's page cache to optimize redirects and performance.
• Complete individual redirect access API.
• Views API integration.
• D8: Maintaining a canonical path and redirecting alternative URL's like non-aliased path, path without language prefixes and so on (Previously provided by Global redirect)
• D8: Separate Redirect 404 module that logs aggregated 404 request (can suppress them in the default log) and allows to create redirects from them
• D8: Separate Redirect Domain module allows wildcard and domain redirects