FPGA

• VHDL - FPGA Tutorial
• theDataBus.io
• Project F - FPGA Development
• Verilog, Formal Verification and Verilator Beginner's Tutorial
• fpga4fun.com - where FPGAs are fun
• Comprehensive list of FPGA development boards - FPGA Developer
• os-fpga/open-source-fpga-resource: A list of resources related to the open-source FPGA projects
• sylefeb/Silice: Silice is an open source language that simplifies prototyping and writing algorithms on FPGA architectures.
• GitHub - olofk/fusesoc: Package manager and build abstraction tool for FPGA/ASIC development
• FPGAwars/icestudio: Visual editor for open FPGA boards

VHDL

• VHDL CLASS
• VHDL Online - A Collection of VHDL Related Internet Resources