Within the cryptocurrency scene, bounties have become a useful part of any ICO campaign. Many start-ups usually incorporate a bounty program as part of their ICO campaign. It has become something of a tradition for cryptocurrency ICO campaigns that incorporate bounty programs to either do a Pre-ICO bounty or a post-ICO bounty. You can find good bounties under alternate cryptocurrency>announcements in the bitcointalk forum or you can check out bountyhive.com as well.