Since the internet technology was improving, most of the people shared their thought or information on xanga, blog, twitter such kind of network service. However, before you wrote something, had you ever imagined that everyone could see what you posted on your space? From March, 2006, all the tweets were stored at the Library of Congress, which means all the twitter users’ information was stored too. Wikileaks document dump does the same thing, but more than that. It exposed variety of unknown of different countries. For sure the governments don’t want Wikileaks keeps running, and the owner had a lot of troubles from them, but it provides historian some secret information and help them to analyze different events. Therefore, not only for now but future also, historian could easily find information by sitting in front of the computer instead of reading a whole bunch of books.

Undoubtedly archiving tweets and Wikileaks document dump help so much by gathering the information; nevertheless, some may ask what about their privacy? This is a serious issue because some don’t want everyone knows about them. Also is it necessary to archive all the tweets? I doubt because most of the thing people posted on twitter were just meaningless, such as “My cat just scratches me!!” Therefore, this issue should be concerned earnestly.