Definitive guide to using Spark content?

I wasn't able to find a forum so I assume there still isn't one.

I've played around with Spark but am interested in first finding out what options there are for us to export, embed, or otherwise "host" content across available media, including websites, Facebook, Instagram, etc.
Again - thought I'd find something definitive here, at Adobe, but posted here because of the apparent lack of a forum or structured guide...

Can anyone recommend resources for this?
thanks!