I just dug this out of my stats… it looks like The World According To Leo Blair is doing the rounds via email in the News International building:

Host Name – woki1.newsint.co.uk
IP Address – 143.252.80.110
Country – United Kingdom
Region – England
City – London
ISP – News International

23rd November 2005 – 09:39:59 – www.backingblair.co.uk/leo_blair/ – No referring link
23rd November 2005 – 10:23:52 – www.backingblair.co.uk/leo_blair/ – No referring link
23rd November 2005 – 10:25:16 – www.backingblair.co.uk/leo_blair/ – No referring link
23rd November 2005 – 10:25:35 – www.backingblair.co.uk/leo_blair/ – No referring link
23rd November 2005 – 10:26:45 – www.backingblair.co.uk/leo_blair/ – No referring link
23rd November 2005 – 10:38:44 – www.backingblair.co.uk/leo_blair/ – No referring link

UPDATE – This link from Guido resulted in dozens of visits from within the Houses Of Parliament (most common IP address being 194.60.38.10) and by 2:32pm this afternoon the show was being viewed from Conservative Central Office (IP 194.203.158.97). Impressive reach. Well done, Guido!