For those that follow this closely at all, you're probably familiar with the following sources. I recommend them only for entertainment purposes, some of their theories seem fairly plausible, others seem to border on the kooky. But I would look for the following on twitter:
The Dude of WV
MHver3
The Greg Swaim Show
JSI07 (though he doesn't post NEARLY as much, and simply seems to be an aside for Dude and MHver most of the time)
I make no claim to the authenticity of their commentary. Seem to have at least some knowledge, but that could be the part that happens to stick. I like some of their theories, find others preposterous, so take it with a huge grain of salt.
Three other places you might want to take a look at:
The Shag is a cesspool, plain and simple, but their realignment thread within their football forum seems to pool a LOT of different information that comes out. One of the better places that I've found tidbits about realignment that I may have missed.
www.shaggybevo.com
eersauthority.com is a WV Mountaineers site were the Dude posts most of his tidbits/ramblings. He has a bunch of interesting blog posts on there, and there is also a thread on their forums for specific questions to him regarding realignment. Again, take it with a big grain of salt.
www.eersauthority.com
Bluegoldnews.com is another WV website, and MHver posts tidbits in their forums (specifically a Big XII xpansion forum they have). Just interesting to see what floats there.
Those are the main off-mainstream places that I try and find out tidbits. Many of them are a little odd, and you have to wade through a bunch of crud to get anywhere, but there are pieces there that can keep you entertained regarding the topic, if you're so inclined.
Matt Hayes of SN and Brett McMurphy at ESPN are always good for an interesting/entertaining view on the topic as well. The more those two tend to contribute to the conversation, including a McMurphy appearance on Finebaum last night, the more I'm inclined to believe that the 'when' of realignment is a lot closer than many might have thought. Should be interesting to follow, regardless.