26. The system of claim 16 , wherein the organizational tool is further configured to: receive a request from the first user to organize the first local hierarchy of folders; and automatically reorganize the first local hierarchy of folders based on the global hierarchy of folders.
16. A system comprising: an organizational tool at a first client computer, wherein the organizational tool is configured to: present a plurality of content items, wherein the plurality of content items are received from one or more sources, via a network, at the first client computer, and wherein each of the plurality of content items is a copy of a content item or a reference to a content item; receive a first user's interactions with the plurality of content items, wherein the first user's interactions comprise steps to organize the plurality of content items within a first local hierarchy of folders maintained by the organizational tool; and transmit the first user's interactions, via the network, to a server computer; and a policy engine at the server computer, wherein the policy engine is configured to determine whether to update a global hierarchy of folders comprising the plurality of content items based on the first user's interactions and interactions of at least one other user.