I tried to leave a comment today on another post on FamousBloggers but was prevented from doing so, so here is my comment!
CONTRARY to what you've heard - everything on the net is NOT always "forever saved" - one of my blogs that contained over a thousand posts and 5 years work was taken down by blogger after some idiot complained it was "spam." There is NO TRACE of that blog left - not even the internet waybac machine has anything on it - and I can think of more blogs that ended up this way.
There are also ways to "scrub" the net clean - I know a woman who was able to get all of the "bad" stuff off the web to the point where you could not even find her PICTURE - not on ephoto - even though she had worked as a television reporter! (And this was BEFORE services like reputation.com entered the arena!)
The point being that "someone" really is controlling all that archiving - and of course we all know if ever a "pulse" bomb explodes over North America - the servers - and all of that data that supposedly will "live forever" - will be GONE GONE GONE!