Boss - Github, now with bounties
Yet Another ICO - A trendy ICO generator for fun
Bugcrowd - Harness the largest pool of curated and ranked security researchers to run the most efficient bug bounty and penetration tests
Top ICO List - Best crypto initial coin offering list & ICO calendar 2018
Bounties Network - Complete tasks, earn crypto
Bounty Jungle - Bounty Jungle is a platform where you can post an annoying coding bug and offer a reward for getting it fixed.