What are some alternatives?
When comparing HitHit and Indiegogo, you can also consider the following products
Kickstarter - Kickstarter is the world's largest funding platform for creative projects. A home for film, music, art, theater, games, comics, design, photography, and more.
Crowd Supply - A Crowd-Funding Platform for Hardware.
Fundly - Raise Money For Anything
SelfStarter - Roll your own crowdfunding
Charitable - A WordPress donation plugin that gives you full control over your fundraising experience.
GoFundMe - GoFundMe is a crowd-funding platform for fundraising one or multiple goals.