Perhaps this has been available for quite awhile, but I just noticed that Jossey-Bass makes the first chapter of our ESL/ELL Teacher’s Survival Guide available for free.
Just go to this link and on the right of the page it lists three excerpts. Excerpt 1 is the entire first chapter. Excerpts 2 and 3 show the index.
Of course, you can find tons of other free resources from the book here, too.