Middle game theory

Hi, I was wondering if anyone has any links to good Video's or Articles on playing middle game.

I use the Tatics trainer which is a great tool but was looking for more content on this part on chess

Thanks

-FreeSolo 

Free, are you using Chess Mentor? I love it, but I've been through many books on opening, middle and end games. 

Well said, Ashley. 

Yes I think its where the real chess begin and games are won or lost, obviously the Openings are important but if you have your opening repertoire down cold then its where you should focus, the End game is hard too and through my own bad play i have been caught in stalemate when i had a obvious lead.

There are some video's on Youtube that i will check out, I use tatics Trainer Tim its a great tool but I don't use it enough maybe a hour a day would really help.