The Largest Library On Earth

Wired:

And it’s Kahle’s impulse to copy and preserve that prompted the Internet Society to induct the serial entrepreneur and digital archivist into the Internet Hall of Fame on April 23 in its inaugural year.
Kahle took the library of libraries — the internet — and made a couple of copies of it, and keeps making copies. One he keeps in servers in San Francisco, the other in mirror servers in Alexandria, where the world’s most famous library burned 2,000 years ago. (His data survived the Egyptian revolution unscathed.)
Through the Wayback Machine, you can see what the web looked like in 1996. And 1997. And 2011.
It’s just one arm of Kahle’s ambitious goal to provide the world with universal access to all knowledge.
His vehicle is the Internet Archive, a nonprofit organization Kahle founded in 1996, the same year he started analytics firm Alexa Internet, a pioneer in collaborative filtering, which he sold in 1999 to Amazon for $250 million.
“I won the internet lottery,” Kahle says.
Or, more aptly, the internet won the internet lottery. Since selling Alexa, Kahle has grown the Internet Archive, which he refers to as Alexandria 2.0, into a massive digital repository that has not only made copies of the internet, but has made available 200,000 e-books (and digitizes 1,000 more each day), 100,000 concert recordings, and some 700,000 films.
All are available online for free.

How do you keep an archive of everything on the internet?  That seems impossible to keep up with.