Rosalind - 11:15 pm on Sep 5, 2013 (gmt 0)
"Cool urls never change", but try telling government sites that, especially in the UK. They're notoriously bad at keeping information in the same place for any length of time.
I would like to the html if it's available, because pdfs aren't meant for web consumption, are generally larger files, and may shut out the increasing percentage of mobile surfers. Mainly due to size and data limits, because I'm not sure about the capabilities of all the common phones. For instance, I can view pdfs on my wifi ereader, but they look awful.