17. A computer system to present previews for protected electronic documents, the computer system comprising: client devices configured to generate queries having query terms; databases configured to store protected electronic documents and rules associated with the protected electronic documents; and servers configured to provide the protected electronic documents that match the query terms, wherein the servers generate web pages that comprise previews that provide viewable portions of regions of the electronic document that contain the query terms and obfuscated views that provide blurred regions of the remainder of the protected electronic document that do not contain the query terms.
17. A computer system to present previews for protected electronic documents, the computer system comprising: client devices configured to generate queries having query terms; databases configured to store protected electronic documents and rules associated with the protected electronic documents; and servers configured to provide the protected electronic documents that match the query terms, wherein the servers generate web pages that comprise previews that provide viewable portions of regions of the electronic document that contain the query terms and obfuscated views that provide blurred regions of the remainder of the protected electronic document that do not contain the query terms. 20. The computer system of claim 17 , wherein the webpage includes an indicator that provides the client with a number of previews used by the client for each protected electronic document.