I think this Bounty campaigns in a nutshell... thread created by me will help you to get an idea about bounty campaigns 
But my advice is DYOR before participating in any campaigns. Most of the ICOs are loving bounties. The real problem is most of the ICOs are scams these days. So you need to consider several factors before joining a bounty campaign. Following threads (created by Coolcryptovator) will help you to spot scam ICOs and don't bother to participate any bounties of those scams.
But my advice is DYOR before participating in any campaigns. Most of the ICOs are loving bounties. The real problem is most of the ICOs are scams these days. So you need to consider several factors before joining a bounty campaign. Following threads (created by Coolcryptovator) will help you to spot scam ICOs and don't bother to participate any bounties of those scams.