Nicenecouncil.com. They've been sending me a bunch of e-mails for a while now. This e-mail finally caught my attention:
FREE eBook - Wrongly Dividing the Word of Truth by John Gerstner
This was one of the first books I read as a Reformed person. While highly polemical, it was one of the first books that helped me sort out dispensationalism. What endeared me to this book was Dr. Gerstner's lengthy replies to a few dispensationalists at the end.
So, I followed the e-mail prompts, went through the registration process, and they did indeed send me a free pdf of the book.
Here's the link: FREE eBook – Wrongly Dividing the Word of Truth: A Critique of Dispensationalism by John Gerstner