All CU libraries currently provide users with online referencing services, and they help with literature searches. Some libraries are also involved in supporting e-learning at their faculties.
If you are looking for a particular book that would normally be physically available in your departmental library, you can check the University eBooks Portal to see whether the University has access to an electronic version. Likewise, you can look for available electronic periodicals at the eJournals Portal.
For more information on library operations and services please visit websites of faculties/faculty libraries.