We published a bit of this in our conference roundup, but typically don't include everything that gets said in these sessions because we want to save that for the people who paid to attend the conference, and we want our faculty to be able to use their talks elsewhere.
But Laini Taylor, generous soul that she is, has posted her whole, fantastic plot workshop on her blog. It's in three parts:
Part I: What is Plot?
Part II: Character, Motivation, and Conflict
Part III: Structure
Do check it out. There's some really great advice in it.