(click the image for a larger version)
Download the source code and either add the files to a Visual Studio Win32 solution that links to SDL and Box2D, or on Linux do:
g++ main.cpp -lSDL -lBox2D
Progress
While this is by no means THE bridge builder tutorial (I intend on writing LOTS and making many pretty pictures), this shows the direction I'm going.
I'm not sure if I should start things really simple and build up, or if I should assume prior knowledge of renderers and physics engines (not that I know much about either of those anyway).
I guessed that something like this would be a good start, then the next version would add images, show how to build for every platform under the sun, that kind of thing.
If anyone is reading this and by the same miracle is actually waiting to see what I come up with, I'd love to hear what you'd like to see.