The book has more than 500 pages detailing how information professionals dig up data, and where they turn when they hit a dead end. It holds a few privacy lessons too. I would consider that to be the equivalent of a PIN for information. Some even include unlisted phone numbers. While these are not given out by phone companies, they can be gleaned from other sources, such as information from product warranty cards, which is often sold to direct mailers.
Internet discussion logs.
They might never tell you what they saw, but they might toss your resume before ever calling you. Examples include everything from resumes with home address, phone and hobbies to pictures of people's kids. His digital robots crawl the Web making copies of every page so scholars and historians in the future will be able to study the early days of the Net in the same way they now use letters and diaries to study the past. People seeking specific personal information wouldn't want to download the massive archive files, but Kahle plans this summer to launch a library-type service called Alexa, which will automatically direct browsing software to grab a recent copy of a page if it can't be accessed directly. And if anybody doesn't want his page archived, Kahle doesn't argue.