Multi-ended Links: Often Handy

In past Transforming XML installments, I have written multi-part columns on topics such as columns on controlling whitespace controlling whitespace and columns on XPath Axes XPath axes because there was so much to say about them. Once the specs necessary to understand XSLT relevant specs become 2.0 Recommendations, many other aspects of XSLT will require long explanations. For a good source of complicated issues to write about, maybe someone should do a regular column about the IETF RFCs on URIs and URLs specs and start of recent xml-dev URI debate threads debates around URIs!