ofCourseBooks - Let your students write, save and share their course notes.
Google Open Source - All of Googles open source projects under a single umbrella
Awesome Computer Science Opportunities - Resources for computer science students
LaunchKit - Open Source - A popular suite of developer tools, now 100% open source.
Student Kit - Everything a student needs.
Open Source @IFTTT - A collection of IFTTT OSS projects.