SFWA just released a new model contract, and it’s annotated. It’s very much worth taking a look at and thinking about if you expect to sign any contracts for your fiction:
You beat me to it. 
Anyway, here’s the direct link to the PDF version:
http://www.sfwa.org/wp-content/uploads/2015/09/Model-Contract-Magazines-FINAL-2015-08-16.pdf
I am absolutely giddy over how useful this is.
Bumping this, because IMPORTANT.
Pin?
It’s also on our Resources for Writers page on the website, under Contracts/Legal:
The link to the PDF has been changed.
Updated; thanks!