Stanford library director Michael Keller says the librarians determined which books to keep on the shelf by looking at how frequently a book was checked out.

NPR: Stanford Ushers In The Age Of Bookless Libraries

Why, in 2007, five Penn State scientists (Richard Alley, William Easterling, Klaus Keller, Michael Mann, Anne Thompson) shared the Nobel Peace Prize for their work on climate change issues.

CNN: Why the Paterno statue needs to stay

It remains to be seen whether US authorities will continue with, or drop, parallel charges against three Wegelin bankers, Michael Berlinka, Urs Frei and Roger Keller.

BBC: Swiss bank Wegelin to close after US tax evasion fine

Charges remain pending against three Wegelin bankers, Michael Berlinka, Urs Frei, and Roger Keller, all residing in Switzerland.

FORBES: Swiss Bank's Tax Evasion Sentence Is Really Death