Monitoring and Evaluating Information and Communication for Development (ICD) Programmes - Guidelines - March 2005
An interesting and relatively short (21 pages with lots of bullets and short paragraphs) overview developed by DFID. Interesting in the sense that it does not focus on an assessment of technologies (IT or ICT evaluation approach) but rather on the impact of COMMUNICATION initiatives. Information and communication technologies, after all, are means to an end, not ends in themselves.
If you're looking for an in-depth look at evaluation methodologies and approaches, this is not it. If you're looking for a quick guide to help you sort through the merits of different approaches, this may be useful.