Is digital history being tossed into oblivion?

1.) This is similar to the situation of the Library of Alexandria because the library kept very important and historical documents that were one of a kind. This information can never be salvaged. Now a days, the online information as well as documents on computers is constantly being deleted forever. Some of this information may be important in determining the progression of man kind.
2.) Information that seems worthless to some may actually be very important to others. It is not so much the information its self but collectively it allows historians to determine how the U.S. and the world was doing; what it was doing; and how fast. I believe that there should be some "really big trash can" where deleted documents are sorted and then recorded. Only certain ones would be recorded and there should be no way to trace it back to the source. This would allow the keeping of records as well as protecting our basic rights to privacy.