Phase2 has created the Topic Hubs module to harness the power of Calais tagging by allowing administrators to create Topic Hubs based on site’s most popular tags.

The Calais Modules for Drupal were created by Phase2 to integrate the powers of the Calais Web Service with Drupal. These integrate semantic meta-tagging of content through the Calais engine.

More Like This shows related content instantly, either from within your site's archive or from outside providers.

Phase2 developed a series of modules to integrate the Calais Marmoset site crawler into Drupal.

Tagaroo provides automated tag generation and image location for WordPress bloggers. We like Tagaroo so much that we gave him his own website. If you're a WordPress blogger and would like to integrate Calais functionality directly within your blogging life then hop on over to Tagaroo.

SemanticProxy, created by the Calais team, makes it easy to generate rich semantic metadata for individual Web pages. Simply paste the page's URL into the tool.  Programmatic use of SemanticProxy requires a Calais API key (your current Calais key will work).