I continue to receive an increasing number of Cesium and CZML questions, but thankfully many of them are the same so I started a FAQ:
https://github.com/AnalyticalGraphicsInc/cesium/wiki/FAQ
The FAQ is incomplete and will always be ongoing. Contributions are welcome. Don’t ask - just do it.
Regards,
Patrick
Also, a nice contribution would be to add a table of contents if someone knows how to use markdown better than I.
Patrick
One more thing - I totally stole some answers from http://cesium.agi.com/czml.html. Thanks. 
Patrick