What pages, channels, blogs etc?
For me i will choose thru the best known campaign managers with no negative trust. Campaign managers will do the most research about the ICO before he accept the task of handling the campaign because their reputation is at stake that if they handle a bad ICO it will reduce their good ratings but if the ICO is successful many participants will going to join because they trust the campaign manager.
Usually check first the necessary requirements such as white paper,road map and what is the purpose of the project. Then look for good ICO manager and take a look also of the member. Or else check the forum sentiments site articles or follow them.