Idea Bubble alternatives

Following on from the launch of 'How to become an idea machine' IdeasGrab is a collection of over 3,400 ideas that I have generated over the last few years. I decided to share these publicly for people to grab and hopefully inspire your own idea generation.

Should I make this? is a site to build your pre-launch mailing list and get feedback on your idea before building. Post your idea and get feedback and early signups from the community. Think ProductHunt for Ideas.

Half baked ideas is an open platform to share your half baked app ideas. You can submit your ideas and vote for ideas you like. Have a half baked idea? Share it or check out some cool app ideas crowdsourced by the internet.