The migrate module provides a flexible framework for migrating content into Drupal from other sources (e.g., when converting a web site from another CMS to Drupal). Out-of-the-box, support for creating Drupal nodes, users, and comments is included - hooks permit migration of other types of content.
The Table Wizard facilitates dealing with database tables: It allows surfacing any table in the Drupal default database through Views 2. Relationships between the tables it manages can be defined, so views combining data in the tables can be constructed.
The Schema module provides additional Schema-related functionality not provided by the core Schema API that is useful for module developers
External Links is a small module used to differentiate between internal and external links. Using jQuery, it will find all external links on a page and add an external icon indicating it will take you offsite or a mail icon for mailto: links.
Provides a views filter that sorts titles by a more natural manner by ignoring articles like "The" and "A."
Using Views2, this module delivers a way to podcast with nodes that have CCK FileFields included as RSS file enclosures. It provides a podcast-compatible (as determined by Apple) RSS feed, using node variables, getID3, filefield in cck, and filefield meta data to generate the RSS tags.
This module adds some common-sense usability to Drupal's menu system
This module allow to set the Menu Settings with certain Menus for content editing by Content Type.
custom field to your Views—markup, PHP, or row number
Ajax.module will AJAXify any Drupal form. This essentially allows for validation, preview, and submission without a page refresh. Ajax.module supports most forms out of the box. Ajax.module provides both an API for module maintainers as well as an admin interface for easy configuration.