LinuxCareer's IT Skills Watch tracks IT skills demand leaning towards the Linux and Unix environment and reports the IT skills that are required by employers seeking Linux talent. Furthermore, the skills are sorted by the frequency they appear in such job advertisements. This report aims to extend the study of the IT Skills Watch by identifying which skills are grouped together in IT job advertisements. By employing cluster analysis LinuxCareer.com identifies 10 relatively different groups of skills that can be linked to IT job categories. The winner set of IT skills is also identified, which suggests the most popular, in terms of demand, IT qualification.