New Psychoactive Substances (NPS) are drugs that lay in a grey area of legislation, since they are not internationally and officially banned, possibly leading to their not prosecutable trade. The exacerbation of the phenomenon is that NPS can be easily sold and bought online. This has also some effects over social media like forums and social networks, that are often used to discuss about new drugs and advertise them. This work introduces the techniques that enable the analysis of data coming from the Web, using scraping techniques and indexing of contents for a fast evaluation of analytics, useful for a broader comprehension of the phenomenon. Here we describe a broad list of tools suitable for sc