I'm not active on this site anymore - even though it's a nice site, I don't know anyone who's here that isn't also on dA or FA. Those are the places I still check. I also crosspost my art to Inkbunny and Tumblr using the API but I don't check those often (if ever).
If Weasyl ever introduces an API that lets me post stuff, I'll start crossposting here again.
I made a new version of CrosspostSharp, my Windows art crossposting app.
It can load/save pictures from files (PNG, JPEG, GIF, or its own format) or load them from websites that you're logged into. It can also post to most of those websites, and it gives you specific options for each.
It can also post to FurAffinity or Weasyl if you install Java and use efc.jar.
Let me know on DeviantArt or FurAffinity (@lizard-socks) if there are any features you'd like to see added.
Joined 22 February 2013