Maybe CoworkingSpaces ?

• Garage30 - Madrid, Spain
• Queen Street Commons - Charlottetown, Prince Edward Island, Canada
• Workspace - Vancouver
• The Future of Work
• Centre for Social Innovation - Toronto, ON, Canada

Community

• Cohousing

Work Networks

• Dreamfish is a collaborative work network that is virtually distributed. Local clusters of dreamfishers work at coworking centers, homes and temporary events.  - Website

• Minciu Sodas is an open laboratory for serving and organizing independent thinkers.  We work for free to help each other on our own projects.  We organize global teams for paid work.  We're organizing Worknets, a culture of independent thinkers.

Incubators

• San Jose Software Business Cluster - South Bay
• Communications Technology Cluster - Oakland,CA
• Rennaissance Entrepreneurship Center - Downtown SF, vm sounds like satan
• Daly City Business Center - Daly City, CA, ($5-8 per square foot per mo!)
• Beltline Business Center - Madison, WI, 10-15 minutes from most everything!

Office Networks

• BCN Thebusinessclass.net (Berlin, Germany), Their fairchise (vs. franchise) offer  

• theOffice, 256 26th Street, Suite 101, Santa Monica, CA (read Niall's review)
• http://www.plugandplayrealestate.com/ (south bay)
• http://www.techspace.com/ (not in SF)
• Backspace What is this site?
• BeingSpaces
  • Being space for mobile warriors
  • Being spaces for mobile warriors | Update
• linuxcaffe - Toronto, ON, Canada
• Office of the Future - via Sean Savage
• Gate 3 (defunct) (story 1, story 2)
• SOUP Toronto, Canada (a group that bought a house to share in Cabbagetown)
• Workspace (Vancouver)
• Executive Suites in San Francisco
• Bureaux - Australia
• Hubworking - London, UK
• Studio One - London, UK
• The Hub - London, UK
• Habitaz
• Your Office -- YourOfficeProfile
• Intelligent Office -- IntelligentOfficeProfile
• BucketWorks -- suggested by Erica
• Thinktank - Workspace for Creative Minds - Pittsburgh, PA
• Mobile BarCamping/Coworking
• super happy dev house
• TechShop
• hacker space

Non-profit Centers

• Non Profit Centers Network
• Thoreau Center for Sustainability
• Bunker Studios

Find/Share Free Desk Space

• Flaming Desks will be the world’s leading free-desk-sharing/networking service!

Executive Suites

note - this page could use a bit of organization.