This website of SANDEC, the Department of Water and Sanitation in developing Countries at the Swiss Federal Institute of Aquatic Science and Technology (EAWAG) provides more information on the CLUES approach. On this site you find a more interactive version of the guidelines, tool updates, interesting links as well as news on CLUES projects from all over the world.
http://www.sandec.ch/clues
[Accessed: 16.11.2011]