Here are some criteria to which I pay attention:
1) the well-known in their circles of the development team, a SEO, who does not hide his face;
2) the approval authority figures in the crypto world;
3) a clear roadmap and whitepaper;
4) ratings known publications;
5) the importance of the idea and the project as a whole;
6) capitalization, the total number of coins and issuance.
And tell me where you usually know all this information? In addition to this there is a forum where you read it all? I would be grateful for links to relevant resources.
I use Google and all that I find in the search engine. Another look that wrote such sites as Steem, Forklog, Bitcointalk and others. Write to me in PM, give references.
Nevsky, thanks for the links to interesting sites and information about the search. Now, I hope that I will invest only in good ICO company will always have a good profit.