If you are working on an electronic hack and would like to poll the hacker audience. Chip Hacker is a site that should work well for you. You could also try the HG Forum but you will need to register and jump through a few hoops which are unfortunately required to combat the spam we were getting.
Thanks Marcus.
"Chiphacker is a collaboratively edited question and answer site for electronics hackers – regardless of platform or language. It’s 100% free, no registration required."