I'm a serial entrepreneur, took the first one public, second is a fairly high profile consumer product, third one is a very cool software play in the energy space.
Q&A for contractors and serious DIYers
Q&A for pet owners, caretakers, breeders, veterinarians, and trainers
Q&A for science fiction and fantasy enthusiasts
Q&A for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles
Q&A for professional and enthusiast programmers