I cross post on my blog, SteemMaker.com, which I started a few weeks ago.
I chose the name because I wanted Steem in it and also a .com domain.
I chose WordPress to use for hosting software because of SteemPress, so cross posting is a snap.
This way I have a much more concise record of all that I have written. I can organize my stuff there easily; not so much here.

And yes, you can absolutely cross post your stuff from Steem. If it is your content, then do what you like with it! I have been posting 9 month old work...