Danny Wahlquist's Mindsay Blog about docbook

"Suman Kumar writes about applications of RSS in Documentation . My idea is to create recent changes lists in RSS for DocBook documents automatically by using an XML-aware version control system and an extension of the DocBook XSL Stylesheets that will output an recent changes feed with links to the relevant changed parts of the document."
from http://weblogs.goshaky.com/weblogs/page/lars?entry=rss_in_documentation