Push-pull, rotary, toggle, rocker, and many other electrical switch designs. Also dimmers, solenoids, temperature, and vacuum switches, Good background literature explaining solenoids and switch wiring.
Unmoderated forum on marine electrical and electronic equipment. Good advice and resources here, but you have to dig and you have to be selective.
Offers wide range of wire, coverings, ties, clamps, heat shrink, tapes and other wiring and circuit protection products. Useful How-To pages.
Marine-grade one-, two-, and three-strand wire, cable, connectors, bus bars, switches, fuses, heat shrink, and other wiring products.
A discussion board and photo gallery for cruising sailors and wannabes focused on the best ways to generate, distribute, and control electricity on a cruising boat.