Text Structure Annotiation Programs

The following are programs which allow you to structurally annotate text:

Name Author Description
RSTTool Mick O'Donnell Description: A tool for marking up the rhetorical structure of texts, graphically (in terms of Mann, Thompson and Matthiessen's RST theory). Simple statistics about the use of the relations in the text can be obtained. You can use the Mann & Thompson set of relations, or make your own. 
Platforms: All platforms. 
Cost: Free. 
Website: http://www.wagsoft.com/RSTTool/index.html