Me too. I am forced to use Google cache to to see documentation. There is one Google Cache Browser website but it does not help as the hyperlinks are not static. After opening http://help.sap.com/abapdocu_740/en/abenabap.htm , the ABAP Overview hyperlink is linking to javascript:call_link('abenabap_oview.htm') instead of http://help.sap.com/abapdocu_740/en/abenabap_oview.htm
Perhaps we need to keep a offline copy on desktop.