While I was working on The Writer's Chatroom Survey, many participants chose the topic of Plotting over other topic choices. 
I'm listing three links to help with the mystery of the Plot. During chat I will use the first link. 

STORY STRUCTURE: 10 Simple Keys to Effective Plot Structure

Structure is something that every agent, editor, publisher, Hollywood executive, public speaker, marketer and story teller talks about, to the point that it can seem complicated, intricate, mysterious and hard to master. So I want to give you a starting point for properly structuring your novel, screenplay or presentation without overwhelming you with rules and details and jargon.

Here are what I consider ten key elements of structure – ten ways of looking at structure that will immediately improve the emotional impact – and commercial potential – of your story.
http://www.storymastery.com/story/10-simple-keys-effective-plot-structure/ 

Join us in chat. Bring your plotting questions and share your tips on the topic of story structure. 

These are Bonus Links. We will not discuss them in detail. 

The Snowflake Method of Plotting a Novel 
http://www.advancedfictionwriting.com/articles/snowflake-method/
 
THERE ARE ONLY SEVEN STORIES IN THE WORLD 
http://lenwilson.us/seven-stories/

If there is time after the topic workshop, we will open the room for any questions you may have.