Where can I find VHDL tutorials or references?

1. For a great reference guide and some examples, go to
http://www.acc-eda.com/vhdlref/index.html

2. You'll find loads of useful links at
http://www.vhdl.org/

3. For good examples, sample code, reference, and downloads check out
http://www.vhdlbuilder.com/

4. Yet another very helpful language reference:
http://mikro.e-technik.uni-ulm.de/vhdl/anl-engl.vhd/html/node1.html

5. Great links and other resources for learning vhdl:
http://tech-www.informatik.uni-hamburg.de/vhdl/

6. A reference organized by syntax (very useful) can be found at:
http://www.amontec.com/fix/vhdl_memo/index.html

Last of all, when all else fails, try www.google.com! That's how I found all of those links and tek-tips, too.