There are many popular sites are available like Bountyhive,Bountylord that gives the ICOs announcement their duration time etc.
I want to know that how you select an ICOs to either participate in it as invester or a bounty campaigner.
yes, of course we have to be selective to avoid the ico scam because there are so many ico at this time. before investing or joining a gift that must be considered is the whitepaper see the type of token and total tokens, then check the team whether it is trustworthy or not. then learn whether the ico can meet current market needs.