1. www.siliconinterfaces.com (Intro)
2. www.vhdl.org
3. www.eda.org
4. www.microelectronics.org
5. www.motionnet.com
6. www.google.com.br/codesearch

FPGA

1. www.actel.com
2. www.aldec.com
3. www.altera.com
4. www.latticesemi.com
5. www.xilinx.com

Verilog & SystemVerilog

1. www.verilog.com
2. www.sutherland-hdl.com
   

ModelSim

1. www.model.com

Cadence Education

1. www.cadence.com (USA)
2. www.cadence-europe.com (EUROPE)
3. www.cadence.com.tw (TAIWAN)

Verification & Training

1. www.verilab.com
2. www.doulos.com
3. www.verificationcentral.com 

IC Design Consultants

1. www.kavcak.com

IC Design & Fabrication Training