I finally found some time, so I reorganized my site layout and updated some old, old pages with the new design.
Check out the playground section.
Since vdirs have been changed, my RSS Query web service is no longer available on http://www.request-response.com/webservices/rssquery/rssquery.asmx.
It has a new home: http://www.request-response.com/playground/rssquery/rssquery.asmx.