1. A service broker machine for providing access to a virtualized resource in a mixed-use virtualization environment, the service broker machine comprising: a processor configured to execute: a user connection engine: (i) executing a web service for receiving, from a client machine, at least one credential (ii) requesting, from a database, connection information associated with the at least one credential, and (iii) receiving, from the database, connection information including: I. an identification of a data center, II. an identification of at least one virtual machine in the data center, the at least one virtual machine associated with a first organization, designated to provide access to at least one virtual resource for a user associated with the at least one credential, and executing on a physical server hosting a second virtual machine associated with a second organization and providing shared sessions to users of the second organization, and III. an identification of a resource username for use in connecting to the at least one virtual machine; a management component (i) transmitting, to a provisioning machine, a request for provisioning of the identified at least one virtual machine, the request including an identifying of a type of resource be provisioned and user information associated with the user and (ii) receiving an indication that the requested virtualized resource has been provisioned; and a transmitter providing, to the client machine, the connection information, wherein the physical server establishes a connection between the client machine and the at least one virtual machine, providing the at least one virtual resource to the user based on the connection information.