I have a really cool app idea, how do I find investors?

Investors invest for returns, not ideas.

While a great idea is important, great execution is far more important.

You need to be able to communicate your long term vision clearly to your investors, and present it in a way that includes their long term incentives as well (how will they get returns?)

There are many places you can find investors:

• Friends, Family, and "Fools" (basically people close to you who will support you)
  
• Angel syndicates / angel communities (they are both online and offline)
• Online platforms like Angel.co, LinkedIn, BEAMSTART
• Crowdfunding platforms
• List your startup in online directories focused on fundraising
• Referrals of clients/friends/other investors

The key is to get a few smaller investors in who can support you in finding more investors.