Hardware design with VHDL or Verilog is more like programming nowadays. However, I see SO members are not so actively talking about VHDL/Verilog programming.
Is there any forum dealing with hardware design with Verilog/VHDL/SystemVerilog or SystemC?
Logic Design was closed because of too little attention. It's now reopened, but interest remains low.
Xilinx and Altera FPGA forums deal with different aspects of using Verilog/VHDL for FPGAs.
IRC: ##verilog, ##vhdl, ##fpga on irc.freenode.net
Netnews: comp.arch.fpga (http://groups.google.com/group/comp.arch.fpga/topics)
comp.lang.vhdl
http://groups.google.com/group/comp.lang.vhdl/
I haven't actively read it in a couple years, but I recall it being a great source, with some very knowledgeable and helpful people. Looking at it now it appears to be getting a lot of spam, which is unfortunate.
The Verification Guild forum deals with hardware design verification with Verilog/VHDL/SystemVerilog.
Update:
Another forum I discovered recently is: edaboard.com
Verilog News Group:
http://www.rhinocerus.net/forum/lang-verilog/
From the [FPGA|DSP|embedded]related.com pages: www.fpgarelated.com/