Websites for Homebrew Electronic Projects?
whiplash asks: "There are regular stories on Slashdot concerning neat homebrew projects, hardware doing things nobody expects it to. I think the homebrew niche is excellent reading and wonder if there are any sites devoted to just that? Archives of articles, HOWTO's, and related material devoted to those folks that are controlling their garage doors with old serial cards and other neat things."
Although not what you asked for per se, ZZZ has tons of various projects and gadgets, some homemade, others manufactored. Worth checking out.
I myself have made a low velocity coil gun and have a more powerfull one in the planning stages.