Jonathan Dowdle has created a Coldfusion tag to facilitate submitting content to OpenCalais. He offers instruction, the download, and a nice example.

This overview and guide to using Calais offers straightforward directions for installing, configuring, and using Calais. Author Angie Byron also offers Drupal pointers and links.

Thomson Reuters' Content Feed Explorer provides an interface to help you easily build content feed URLs from the parameters available. This allows you to browse the feeds available as well as build the URLs you require for use within your projects. Calais provides the semantic tagging in RDF format.

This PHP code (server and client) demonstrates how to use Calais with PHP. We offer both the raw representation of the Internet browser and a document viewer  representation highlighting all the entities in the text. Download the attached file, which contains documentation as well as source files.

To enable your PHP demo in Safari and Firefox, see this posting from Pete Warden. 

The example of a JSON wrapper – code that runs on the server and converts the RDF into JSON format - is also presented. We will be releasing (soon) a much simpler JSON wrapper (based on RDF) and another format is based in Simple Output Format, as well as a Java application controlling the Calais Web Service.

Stay tuned.

The best place to start is with the Calais Document Viewer. The document viewer allows you to paste sample text and receive that text back with all entities, facts and events highlighted and navigable. You can also view the native RDF output and capture it for analysis in other tools.

RDF may be a beautiful thing for the representation of semantic content - but it is most definitely not a lot of fun to read. We've built a small (windows) application that will allow you to browse a folder of processed documents and see the types of semantic metadata extracted. You can download the installer here. The document viewer requires a current installation of the .NET framework.