Channels are tied to the Open Graph plugins you have installed and enabled. We only support a handful of components for automatically posting new content through social channels.
So, for EasyBlog, please install/enable the Open Graph - EasyBlog plugin. That should be installed with the main JFBConnect installation package if EasyBlog is detected.
Once enabled, it should show up in the Channels area automatically. Nothing else to configure.. I don't think
Keep me posted though if you continue to have issues and I'll gladly help!
Thanks,
Alex