Other Options
Here are a few other free or low-cost "back-end" approaches:
- A JavaScript site hosted for free on GitHub with updates made directly through a CMS or through GitHub as a dashboard. See StaticGen for ideas (some of these frameworks can be deployed via GitHub gh-pages)
- A Django, Ruby on Rails, JavaScript, or PHP/WordPress site deployed for free via Heroku free tier, or Amazon Web Services (AWS) free tier (lasts for one year), with updates made through an admin dashboard
- A Digital Ocean $5/month app, perhaps using a one-click install