Modules that rely on views
As suggested at http://www.angrydonuts.com/asking-for-a-little-help-from-the-community-n..., this is a place to list module that rely heavily on views.
Please list the module name, a link to its project page, and,
a neutral description of what they do, and then a non-neutral comment on the quality and maintenance level of the modules. Obviously the latter is a judgment call and I don't expect it to be completely dead on, but I would like to note projects that are well known to rarely get bugs fixed. Another comment might be known usage levels, some of which can be gleaned from the shiny new usage statistics.
Organic Groups
http://drupal.org/project/og
Enable users to create and manage their own 'groups'. This is module that is implementing the groups.drupal.org functonality
[Comments/Usage]
Flag
http://drupal.org/project/flag
Flag is a flexible flagging system that is completely customizable by the administrator. Using this module, the site administrator can provide any number of flags for nodes, comments, or users. Some possibilities include bookmarks, marking important, friends, or flag as offensive. With extensive views integration, you can create custom lists of popular content or keep tabs on important content.
[Comments/Usage]
Views Bulk Operations
http://drupal.org/project/views_bulk_operations
This module augments Views by allowing bulk operations to be executed on the nodes displayed by a view. It does so by showing a checkbox in front of each node, and adding a select box containing operations that can be applied on the selected nodes.
Keywords: bulk change, mass update, en-masse modifications, batch operations.
[Comments/Usage]
SimpleViews
http://drupal.org/project/simpleviews
A streamlined interface for building Views. Administrators make a few simple choices (What kind of content should be listed? Do I want to sort by date, or by title? etc.) and a view is generated on-the-fly. Because the Views API is used, the resulting views can be modified using the full Views UI module.
[Comments/Usage]
Views Attach
http://drupal.org/project/views_attach
This module provides two additional Views display plugins, "Profile" and "Node content". These displays do not display on a page but get "attached" to either a user page or nodes of specified types. These views are not stored with the user or node, the way viewreference.module would, so they can be globally-reconfigured.
[Comments/Usage]
Views Reference
http://drupal.org/project/viewreference
Defines a CCK field type 'View Reference' which allows users to link to, or include views into nodes. This module is modeled on Node Reference and usage is similar.
[Comments/Usage]
e-Commerce
http://drupal.org/project/ecommerce
Implements a shopping cart and customer management system to facilitate the sale of product. This set of modules from v6.x-4.x-dev uses Views to implement all reports for transactions and receipts. This will allow the store owner modify the views to meet their requirements.
Also e-Commerce uses Views Bulk Operations and Rules to allow the store owner to alter the workflow to meet the requirements of the store owner and not the requirements of e-Commerce.
e-Commerce v6.x-4.x is still under heavy development.
[Comments/Usage]
Date
http://drupal.org/date
The Date API adds a date argument and date filter that can be configured to work for any system or CCK date field. The argument is highly flexible and can be used to filter for any date range based on ISO terminology in the argument (like 2008-03-01--2008-04-15, or 2009-01-15--P3M). It also comes with a default 'Date Browser' attachment that adds back/next navigation by year, month, day, or week to the top of any view.
[Comments/Usage]
Calendar
http://drupal.org/calendar
Adds an option to display Views date fields in a calendar instead of a list. Comes with a default calendar that has year, month, day, and week displays, an ical link, a pre-configured mini calendar block and a pre-configured upcoming events block. Also has settings to color-code the results in the calendar by content type or taxonomy.
[Comments/Usage]
Views Calc
http://drupal.org/views_calc
Adds a new style that will alter a table display so you can add rows to the bottom to show the SUM, COUNT, AVG, MIN, or MAX for the results in that column. Adds some css to make the table more spreadsheet-like. Also adds a place where you can create custom Views calculation fields that can be added to any view. The custom fields allow you to create a field using SQL statements from the values of other Views fields, like CONCAT(field1, ' ', field2) or field1 / field 2.
[Comments/Usage]
Insert View
http://drupal.org/project/insert_view
The Insert View module creates an input filter allowing users to insert views into node bodies, fields that use input formats, and blocks by using specially crafted tags. This is proves helpful in situations where content editors shouldn't have PHP or Views admin access but need to edit content related to a view.
[Comments/Usage]
Views menu nodes
http://drupal.org/project/views_menu_nodes
Adds a filter and argument to show nodes beneath the current menu location, or a specified menu id. Drupal 5 only.
[Comments/Usage]
Node Reference Views
http://drupal.org/project/issues/nodereference_views
Use a view as a display formatter for CCK node reference fields.
[Comments/Usage]
Better Exposed Filters
http://drupal.org/project/bef
Provides an option to display exposed filters as checkboxes or radio buttons rather than the default multi- or single-select boxes, respectively. Also allows exposed filters to be displayed as hidden form elements allowing multi-page exposed filters.
[Comments/Usage]