Enroll students and don't show in 'My courses'

I have a lot of information that is used by a number of courses. I do not want to replicate this information in every course and if something changes I don't want to go into every course and change it.

To fix this I've made a course that holds all this information and students can access the information from links in their own course. If I enroll the students in this holder course it will show under 'My courses'.

How am I able to enroll students so it won't show in their 'My courses'?

or Is there a better way to hold generic information?

I'm running Moodle 2.3.2