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The freelinking.module for Drupal implements a filter for input formats, creating links to existing content or links to new content creation via automatic linking of CamelCase words or words with double-square-bracket delimiters. It can be used 'wiki style' to provide links between content or easy creation of new linked content. It does not implement a 'wiki' type of content; this can be done with the flexinode module or using another core content type like blog or story.