Shared Resources contains all the artefacts which are by default shared between all users within the same organization. It is important that all the users within the same organization uses the same network connection and same repository to access the shared files.
In simple words, Shared location in Repository from which the artefacts are accessible to all application users. Best practice is to place only files which are going to be used all across the organization i.e. Images, Theme, Data Source etc.
Shared Resources has following items: