Information technology is dramatically changing society and work relations nowadays. Different ways of connecting through the Internet and the emergence of social networks have provided the means for individuals to contribute and share personal and professional information affecting the way of accessing the job market. In many cases this is in an unstructured mode, although professional websites often require that information is standardized. The quality of the data offered in professional web portals makes it possible to extract more information than in traditional methods (Zide, Elman, & Shahani-Denning, 2014), and additional aspects can be obtained, such as, for example, social capital (Reiners & Alexander, 2013). Moreover, as using these resources has a low cost (Nikolaou, 2014; Roth, Bobko, Van Iddekinge, & Thatcher, 2016), they are an element of great added value for personnel management in different organizational processes (Madia, 2011), such as recruitment, selection, or hiring. Therefore, companies that do not use social networks in their processes for contacting clients and potential employees are missing a huge opportunity. Specifically, the automated analysis of candidates' profiles to determine the adjustment to a position offers a significant efficiency gain in the process (Faliagka et al., 2014). However, it is true that today most organizations with implemented human resource policies use social networks to a greater or lesser extent. One of the most common uses is electronic recruitment, a form of external recruitment based h t t p s : / / j o u r n a l s. c o p m a d r i d. o rg / j wo p