GNU/Linux has a reputation for being very male-dominated, but women's groups are emerging and becoming active in the FOSS movement. These groups also support women in ICT more generally.
Gender exclusion in ICT is a huge problem globally and this has been reflected in GNU/Linux development and use. Fewer than 20% of ICT developers are women and this drops dramatically at strategic level. At entry level, women's wages are 17% of men's. By the time women reach their 40s, they will typically be earning 40% less than men. This is actually getting worse and there are many national and international initiatives to address the problem. It's crucial to get more women involved in ICT because exclusion from information technologies will increasingly translate to social exclusion.