This guide from the Natural Resources Institute (NRI) provides a detailed guide to the use of Participatory Monitoring and Evaluation (PME) with a particular emphasis on natural resource management.
Evaluation methods and tools mentioned
Guijt, I. The University of Greenwich, The Natural Resources Institute (NRI). (1999). Participatory monitoring and evaluation for natural resource management and research. Retrieved from website: http://www.nri.org/publications/bpg/bpg04.pdf