From Tim Chow via FOM:

I have just completed a first draft of an expository paper on forcing.

http://alum.mit.edu/www/tchow/forcing.pdf

This paper grew out of a sci.math.research article that I posted back in 2001 entitled “Forcing for dummies”:

http://groups.google.com/group/sci.math.research/msg/c2d65d1a23eabb66

I made a major change, hopefully for the better, by approaching the subject via Boolean-valued models, which I believe are pedagogically very helpful. Constructive comments on the exposition are welcome.