Bludit - Bludit is a web application to build your own website or blog in seconds, it's completely free and open source. Markdown support.
CoinList - Build a diverse portfolio of pre-launch token investments
Grav - The modern open source flat-file CMS
Crypto Buyer's Guide - Extensive cryptocurrency buying guide
WonderCMS - WonderCMS is the smallest flat file CMS. Completely free, open source, privacy oriented for over 12 years.
CoinCap.io - Shows the prices of different cryptocurrencies from ShapeShift.