I announced chapter 6 of "FPGAs?! Now What?" in March of 2012. Today, I'm "proud" to release chapter 7. I got it done in less than a year since the last one. Yay me!
This chapter covers how to do a mixed VHDL/Verilog design.
As always, remember that all the source files for this book - including the FPGA projects - are available at Github.