Editview is a plugin for the Views module. It allows you to create a view in which the nodes are editable, and new nodes can be created. Editview uses AJAX to speed things up, but will still work on browsers with javascript disabled.
This module provides a new view style which lets you assign taxonomy terms to the nodes in the view. Use this to quickly add tags to a group of images or other content.
A mass category editor. Allows any nodes shown on admin/content/node to have terms added or removed in bulk, using the normal 'node operations' selector. Also provides a tab to view/edit all nodes terms individually.
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.
The module processes feed items immediately after parsing and retains only these feed items that match some user-defined filtering criteria.
The Faceted Search module provides a search API and a search interface for allowing users to browse content in such a way that they can rapidly get acquainted with the scope and nature of the content, and never feel lost in the data. More than a search interface, this is an information navigation and discovery tool.
This module allows form elements generated by the taxonomy module (selects, multi-selects, autocompletes, etc. for selecting terms) to be rearranged individually throughout the node form.
The Domain Access project is a suite of modules that provide tools for running a group of affiliated sites from one Drupal installation and a single shared database. The module allows you to share users, content, and configurations across a group of sites
This module provides static page caching for Drupal enabling a very significant performance and scalability boost for heavily-trafficked Drupal sites that receive mostly anonymous traffic.
Cumulus allows you to display your site's tags using Flash that rotates them beautifully in 3D. It works like a regular tag cloud, but is more visually exciting.