FPGA, EDA

• EDA Playground - Easy way to compile and run testbenches on HDL

• HDL vs RTL - Stack Exchange question

• Project F - FPGA blog & resources!

• FreeCores - Tons of FOSS FPGA IP cores

EDA

• SnapEDA - Free PCB footprint and schematic symbol libraries
• Ultra Librarian - Another free PCB footprint/schematic symbol lib database
• KiCAD - FOSS EDA Suite
• Fritzing - Beautiful schematics, also does PCB design like KiCAD!