Catapult Design — Design firm that researchs, designs, and develops human-centered products and services.
Proximity Designs — User-centered design methods for irrigation and solar products to create innovative financial solutions for rural smallholders.
Civic Service Design — Civic service design tools and tactics from NYC — a de-facto standard.
Collective Action Toolkit — A set of activities and methods to enable groups of people anywhere to organize, collaborate, and create solutions for problems impacting their community.
Design Sprint Kit — Resource for planning and running a design sprint.
DIYToolkit — Practical tools to trigger & support social innovation.
Hack Design — Design course for all UX topics.
Human-Centered Design Toolkit Africa — Afro-centric approach to HCD.
18F Methods — Collection of tools for design thinking and agile development processes.
Open Innovation Toolkit — Community-sourced set of best practices and principles to incorporate human-centered design into product development process.
Open Challenges Resources — Great resources on topics such as 'building a team', 'engaging offline', 'building by doing', 'reimagining international aid', 'interview toolkits', 'brainstorm toolkits', and more from IDEO.
International Development Innovation Network (IDIN) — MIT D-Lab effort that supports innovators and entrepreneurs around the globe to design, develop, and disseminate technologies to improve the lives of people living in poverty. Good resources in their IDIN Resource Library.
Nesta — Global consulting firm based in the U.K. — many good resources on design thinking, innovation, etc.
D-Lab — Global network of innovators to design and disseminate technologies that meaningfully improve the lives of people living in poverty.