#1 - The "merger" is a bit confusing for everyone. They mergerd in the sense that CardRunners now owns Stox and controls them but they are still two separate training sites that only share certain videos. I think 10 videos are being shared over the coming months so you definitely do not get access to both if you sign up for Stox.
Cardrunners is the better site out of the two. They have better pros and are producing videos that are better quality on a daily basis. The trade off is that they are more expensive but worth it imo. I have been a member of Cardrunners for over 2 years now and its helped my game a ton. If you can get the CardRunners membership iniation fee waived through our promotion you are going to be way ahead over Stox. I can walk you though that but i'm sure you have already seen that promo on our site.
#2 -
Free Training] is the link that explains the free training offer through CRs/stox and full tilt poker.
Let me know if you have anything else?
Ryan