housingprototypes.org, a guide to housing design examples listed by project, architect, building typology, city and country:

HousingPrototypes.org contains examples of housing designed by different architects in different historic periods, countries, and cities. Projects range in scale from single buildings to examples of large social housing projects containing thousands of dwellings. A typological guide provides for research by housing site and building organization. Each example is presented as an individual case study complete with building data and description, a critical analysis, bibliographic resources, photographic images, and drawings. The data is cross-indexed for easy searching by housing type, country, city, architect and date.

Found via Stan Allen’s blog.