List of useful (to me) FPGA resources:

Books

• http://www.freerangefactory.org/site/pmwiki.php/Main/Books (read all three of them, first two are VHDL)

Tools

• The ideal software tool to write, simulate and synthesize your VHDL code. https://code.google.com/p/boot-vhdl/

Projects

• http://hamsterworks.co.nz/mediawiki/index.php/Main_Page (great projects)
• FPGA-BASED USB INTERFACE http://www.xess.com/projects/FPGA-USB-V2/readmeusb-v2.php
• How-to debug internal FPGA Logic with the $50 Openbench Logic Sniffer. http://logicsniffer.gadgetfactory.net/index.php?n=LogicSniffer.DebugAnFPGA
• http://www.kickstarter.com/projects/1575992013/logi-fpga-development-board-for-raspberry-pi-beagl
• https://github.com/fpga-logi
• FPGA Arithmetic the way it should be http://flopoco.gforge.inria.fr/
• http://www.asics.ws/
• RGB video input for Altera DE1 board + PAL Modulator https://github.com/svofski/videoconditioner

• https://blackmesalabs.wordpress.com/2016/12/22/sump2-100-msps-32bit-logic-analyzer-for-icoboardraspberrypi/
• https://github.com/fpga-logi