ADEx is a platform that I like a lot because it solves problems both for those who buy advertising and the users of various web services such as YouTube, where we are annoyed by advertising that really does not interest us. This company was born offering intregral solutions related to advertising and even better with all the benefits that the block chain offers. It is a very prosperous market in which these people develop since the Internet and online services are increasingly present and this trend is on the rise.