First Course Experience
Improving the first course can appeal to a broader demographic (not just women) by teaching computing in context and showing how computing skills can be is applied to disciplines such as healthcare, disabilities, or the arts. Such introductory courses introduce computational thinking skills (as opposed to just the mechanics of coding), keep students engaged, and increase retention in the major.
Community and Visibility
Partner with existing groups (company affinity groups, supervisory groups, local community organizations) to offer opportunities that women weren't aware of and to recruit and advance women into computing fields. This may involve efforts to change the image of computing or improving how the organization celebrates women's technical contributions and accomplishments.
In-reach means looking more closely at the women already on campus and those already working in your company to recruit from the inside. Women already connected to your organization can be motivated to study CS / IT majors or take on variety of technical corporate jobs when they receive direct motivation to do so.
Outreach and programs that target middle and high school girls are important because they engage girls before they lose interest or decide to pursue other fields. Programs such as the NCWIT Award for Aspirations in Computing and Dot Diva provide encouragement, inspiration, and community to young women that can influence career decisions.
Faculty, admissions staff, counselors, parents, mentors, managers, and peers are all powerful influencers of women's decisions to enter or stay in a technical career. Influencing the influencers provides an inflection point for causing them to consider their own biases or perceptions, and helping them encourage more women to pursue technical careers.
Tapping New Pools of Talent
Sometimes it's helpful to look externally for new pools of talent and introduce them to computing fields and careers. This can include offering new majors or creating interdisciplinary majors that allow students to combine computing skills with a variety of fields that interest them, or providing training to current employees that allows them to switch to a technical track.