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The Links Package is a multi-module set for managing URL links in a master directory, and attaching them in various ways to your content pages. It includes both an API for developers and user-visible content modules. This package is released for Drupal 4.7 and Drupal 5.0.

Links offers the following features:

• An API for managing URLs in a generic way, and for associating these links in a many-to-many relationship with nodes. Each link is "normalized" internally, to try to merge references to the same URL in the database. If the same URL is used multiple times, it appears only once but with many node references in the {links_node} table. This helps to make processes such as link monitoring and dead link detection more efficient. The API also allows each link-node association to (optionally) provide an unique node-local title that overrides the global title for that particular URL, but only when that node is being displayed. In other words, the same URL can appear to have multiple different titles.
• A main links.module that governs the behavior of the Links Package's global features, and which implements common functionality such as outlink tabulation of clicks. Click tabulation is by node and link, so that it is possible to find out not only how many times an outbound link has been followed, but also how many times it has been followed from each node that refers to it.
• A links_related.module which allows the administrator to add a link field to any desired node types in the system. Currently, the node type setting is just a boolean flag, and if on, the node can have zero to infinity links. In the next version, however, this will become an integer where 0 means no links for the given node type, +N means "up to N links" for each node of that type, and -N means "exactly N links required (non-empty URL).
• A links_weblink.module which defines a node type of 'weblink', which behaves very much like the node type of the same name by Ber Kessels, and which in fact was based on his module's code base but uses the new links API.