But there is also a lack of permanence in the information that we view on the internet. An article that we read in the New York Times might revised, with no indication that a change had taken place. There is no public record of the earlier version of the article as there would have been if it were printed on paper. Thus some element of the story is erased through its revision.
The internet has seemingly endless potential for data storage and preservation, but the dynamic nature of digital information presents new forms of erasure and deletion.