A number of sites I visit regularly, including http://www.teamtalk.com and http://www.guardianunlimited.co.uk seem to have an unusual method of addressing individual webpages on their sites. The actual pages end with addresses such as:
Is this a particular naming convention or a piece of software being used? If it’s the latter, what is the software and why does it seem to be so popular? Is it simply addressing scalability for large sites?