Also just wanted to point out that if you're searching for something specific you could always use myBB's built in search feature and sort by post date...
I dont know about making different sections, but i think there should be a Filter option, so you COULD look for particular SMs if you want. I like having the option to browse all at once at times though, so i dont sport dividing all the sections.
imo this would be way too cluttered and it is better having one big general section rather than breaking it up
considering the fact that when one of the social mediums goes belly up (won't be soon i realize)
i just think it should stay a broad catergory
Why not just have the tags/prefixes for each different type of social medium and when people want something specific such as an email they can click the email prefix and it would filter all the threads with that prefix.
This would only be able to used in the market section.