Flare by GoDaddy - Discover, give feedback and support startup ideas
TLDR Options - Guesstimate the possible value of startup options
Wittycircle - Networking tool for entrepreneurs, makers and curious minds.
Startup Value - Value your startup like a VC in 3 minutes
Little Inventors - Turn children's ideas into reality
Founderfit by Koble - See how you compare to VC-backed founders.