Major cybersecurity and threat intelligence analysts agree that online criminal activity is increasing exponentially. Technologies, newspapers, the internet, and social media made the dark web an accessible place to almost everyone. The ease of accessing the dark side of the web makes the problem more critical than ever. For this reason, the European Union financed the ANITA project, consisting of different tools for monitoring and fighting illegal criminal activities on the Dark Web. In the ANITA project, we propose different Big Data analytic tools for the analysis of all data extracted from illegal marketplaces. In this survey paper we present our developed tools for detecting trends and analyzing the incoming information with respect to illegal trafficking. The tool extracts information about specific trends, analytics and produces actionable insight on buying and transaction habits and user behaviors. The tool extracts statistics in order to support and guide investigators and law enforcement agencies for the detection of criminal activities.