Flare by GoDaddy - Discover, give feedback and support startup ideas
Wittycircle - Networking tool for entrepreneurs, makers and curious minds.
Little Inventors - Turn children's ideas into reality
Idealist - Volunteer, work, and intern job search
The Idea - The Idea is a platform that allows users to keep their ideas safe as they have hundreds of ideas every day.
Ideas Are Worthless - Like Product Hunt. But for Ideas.