With Mathcad 12 you can specify your preferred home page for use within the Resources window.

Organizations using Designate can change the My Site entry on the File Locations tab of the Preferences dialog (available from the Tools menu) to their repository URL, enabling direct access to their repository of Mathcad documents.

You can use Designate within your organization as a web-based solution for project collaboration, creating Mathcad Libraries to share data and team information for all your active and archived projects.