If you have a brilliant new idea for an mobile app, a handy gadget, a smartphone case that does something cool, an album you want to produce, or even a comic book you want to publish, it's never been easier to get your idea in front of a lot of people and raise money to make it a reality. There are dozens of free and cheap sites designed to boost new ideas, but not all of them are best for your idea. Here's how to pick the best one for you. More »