Dawn wrote to me needing a prototype and contacts (any prototypers out there feel free to leave a comment). Dawn I have a section on prototypes that includes tips on making one yourself and the same information can prepare you for working with a professional; make sure you sign a confidentiality agreement before hiring anyone. The best place to network is at a local inventors club (check your telephone directory or local universities if you don't find a local listing). I also have a section on professional services. Big Tip of the Day: Dawn, it's a smart move to diversify and hire different individuals for each specific need related to inventing. P.S. Glad you're a fan of Scott Allen, our fabulous About Entrepreneurs guide.