Hackerspaces, makerspaces, citizen scientists, DIY-you-name-it. The cost of doing science is falling! The spirit of open-source software development is finding new homes everywhere from hardware to biology.
This wiki post is a community-editable listing of spaces supporting community science & engineering. There are plenty of listings of hackerspaces, my hope is that this one will emphasize those with resources for exploring the physical sciences. Add your space listing here, discuss in the comments. Please attempt to keep items in alphabetical order, with the suggested format:
Space Name (with hyperlink) - Location - Emphasis/Specialty - Noteworthy Projects
Counter Culture Labs - Oakland, CA - Biotechnology - Vegan Cheese Bioengineering
Genspace - Brooklyn, NY - Biotechnology
HiveBio - Seattle, WA - Biotechnology - Citizen Salmon