Internet Web Site Hosting Providers.

As far as I can tell, ONLY Google Cloud allows /ongoing/ free development use. E.g. all the others offer X hours free, then you pay for any activity from then on. Google allows 28 free instance hours per day and 9 free instance hours per day... forever... e.g.
https://cloud.google.com/appengine/docs/quotas

"Instance usage is billed by instance uptime, at a given hourly rate. There are separate free daily quotas for frontend and backend instances. Note that when you use the Modules API, the module's instance class determines which quota applies.s
Resource or API Call Free Quota:
Frontend Instances 28 free instance-hours per day
Backend Instances 9 free instance-hours per day"

See also:

• https://github.com/HaddingtonDynamics/Dexter/issues/31 Case study for the setup of a chat server in google compute engine vm.
• https://github.com/ColeMurray/react-express-starter-kit A Setup for a google compute vm server with node.js using express and serving page via react. PM2 is used to restart the server and keep track of it. Gulp is used for life updates (but does not work with the current versions of node ¹ ). Note: Use NVM ² to install NPM and Node.
• http://www.youtube.com/watch?v=gxZvofAvgHQ Google Compute Engine - Ten Minute Test Drive: Set Up your own Web Server
• http://cloud.google.com/appengine/ Google App Engine provides website hosting with backend scripting. Low volumn use is free.
  • http://www.labnol.org/internet/host-website-on-google-app-engine/18801/ Tutorial
• https://developers.google.com/compute/ Google compute engine offers full web servers with scalable computing power on Linux. Reviews: ^
• http://www.windowsazure.com/ Microsoft now offers cloud server hosting via their Azure service. Both Windows and Linux OS's are available. Reviews: ^
• http://webhostingrating.com/ List of web hosts with ratings.
• http://www.bluehost.com/ Unlimited sites, but a 40K file limit.
• http://www.site5.com A well rated host.

See:

• /techref/ecommerce/shoppingcarts.htm Shopping Carts
• /techref/ecommerce/index.htm Electronic Commerce, ecommerce, ecom

Old:

• https://googledrive.com/host/0B0ap0WDOII5mbjdwajNBMlRoZUU/ You can host a static (no backend scripting) web site free of charge via Google Drive. Update: This is no longer available as of August 2016.
  http://gdriv.es/massmind and the gdrive.es service makes your url look nice.