Here's what I've got gathered so far. I'll try again after I get some sleep to get the rest.
[This link just basically links you back to my posts here. It's all explained.]
Not a lot of spoilers in this batch except some vague ones for location and specific ones for some guest stars.
Still, the usual warnings apply: don't click if you don't wanna know...yadda, yadda, yadda.