Jakob Nielsen, the master of usability, is the user advocate and principal at Nielsen Norman Group, which he co-founded with Dr. Donald A. Norman, the former research vice president of Apple Computer. Before 1998, he was a distinguished engineer at Sun Microsystems. Now, his research in the field of web usability is recognized as the world's authority. This week, Jakob Nielsen wrote the following content on his blog: "How Hard Is It To Use Google Search."