there are several key components of the OLN that should be private and secure, situated within an institution's intranet. These include student information systems (SISs), identity and role repositories, proprietary content stores, and secure online assessment applications. These are and should remain core components of the institutional IT infrastructure. Beyond these, however, there are several OLN components that need not be private. Faculty and student blogs, wikis, portfolios, and open courseware and open educational resource repositories can be open (at the option and discretion of individual faculty members and students). These functions can exist, spread across multiple applications and websites, in the cloud. Some applications might even be mashups of intranet and cloud-based applications.