52. A computer readable medium storing thereon one or more instructions, which when implemented causes a processor to implement a method for searching documents tracked on behalf of a plurality of organizations, the method comprising: receiving at a host system, a search query for a document stored on behalf of a first organization, the document being stored in a storage accessible to the host system, the document stored in the document management storage in association with a unique identifier and a tag, the unique identifier enabling a tracking of the document and a version of the document using a portion of a database limited to information of the first organization, the search query not including the unique identifier; receiving the tag as part of the search query; performing a search based on the search query by at least limiting the search to documents that have the tag; returning results of the search; and the host system storing one or more machine instructions, which when implemented cause the host system to perform at least an allowing of a level of access to the document to be granted to multiple users that are members of the first organization, the level of access allowing a plurality of users to at least edit the document, and store the document that was edited on the host system as a master copy of the document; associating by the host system, the document with one or more of a plurality of document types chosen from a list of document types, each of the document types including one or more properties associated with a list of properties, each property describing one or more characteristics associated with the document type that is associated with the document; and receiving values for one or more search fields, the one or more search fields being different from the tag, the document types, and the properties; and the one or more search fields including at least a field for an author of the original document, a name of a workspace, and a document format.
52. A computer readable medium storing thereon one or more instructions, which when implemented causes a processor to implement a method for searching documents tracked on behalf of a plurality of organizations, the method comprising: receiving at a host system, a search query for a document stored on behalf of a first organization, the document being stored in a storage accessible to the host system, the document stored in the document management storage in association with a unique identifier and a tag, the unique identifier enabling a tracking of the document and a version of the document using a portion of a database limited to information of the first organization, the search query not including the unique identifier; receiving the tag as part of the search query; performing a search based on the search query by at least limiting the search to documents that have the tag; returning results of the search; and the host system storing one or more machine instructions, which when implemented cause the host system to perform at least an allowing of a level of access to the document to be granted to multiple users that are members of the first organization, the level of access allowing a plurality of users to at least edit the document, and store the document that was edited on the host system as a master copy of the document; associating by the host system, the document with one or more of a plurality of document types chosen from a list of document types, each of the document types including one or more properties associated with a list of properties, each property describing one or more characteristics associated with the document type that is associated with the document; and receiving values for one or more search fields, the one or more search fields being different from the tag, the document types, and the properties; and the one or more search fields including at least a field for an author of the original document, a name of a workspace, and a document format. 53. The computer readable medium of claim 52 , the unique identifier including a hash value that results from applying a hash function to the document.