[mschalle]

They have a program called Explorers [1] that's been driving a lot of their internship success. It lets interns rotate through different departments, rather than focus on one area.

[1] http://careers.microsoft.com/careers/en/us/internships-explo...

[AdamTReineke]

Not just different departments, different professions: 4 weeks in development, 4 weeks in test, 4 weeks in project management.