The blog at Experientia points to this convenient tool providing quick access to design research methods, divided into six project phases:
This online repository is a necessarily unfinished and evolving resource for Participatory Design Techniques. These techniques help evolve a project lifecycle through participation of multiple stakeholders including potential users or audiences, partners
Not all methods are documented in detail, which makes this not the most complete source for teaching purposes, but it definitely is a handy resource for inspiration or to (re)discover some forgotten or new method for a case at hand.
The application was produced by CFC Medialab in conjunction with Professor Suzanne Stein of OCAD University.