Assigning a blog/network to a tribe tells the system which blog/network's content should be imported into a specific tribe's stream. Please note, if only one blog/network is connected you are still required to assign the blog/network to a tribe if you want your blog posts to import into that tribe.

Hello! Currently you are a follower of this tribe. In order to add assign your blog to this tribe, you need to be a "Member" of the tribe.

Assigning a social network or networks to a tribe determines the connected social network or networks your post will be shared to, when you add a post to queue from that specific tribe's stream.