I look into bitcoin groups and try to be friends with as many crypto traders as much as possible because they may give leads on what good icos and coins are out there, from there I will go look for the official site and read alot about it. It is important that you decide with yourself and look at the coin without the hype behind it so you will not be rekt if other people are just shilling it for their own purpose and lastly if you read it on facebook it's probably late already to invest.