WheresThePath  
Lost!

Links and Useful Information

Websites

Official site:
http://www.tfl.gov.uk/streets/walking/routes-2-3.shtml

A Personal Site:
http://www.longdistancewalks.com/london_loop/index.html

Books

The London Loop - David Sharp - Published by Aurum Press - ISBN 1-85410-759-3