In various embodiments, a computer-implemented method for sharing tasks over one or more computer networks is disclosed. The method includes providing a task created on a first computer system located in a first network, the task comprising content information and metadata information. The task can be shared with a user of a second network that is different from the first network. The method can include transmitting the metadata information of the task to a second computer system in the second network over the one or more computer networks without transmitting the content information, the metadata information comprising at least a task identifier. The method can include receiving a request from the user to access the task. The method can include verifying that the user is a task participant. The content information of the task can be securely presented to the user over the one or more computer networks.