Linux guides and HOWTOs, available at the Linux Documentation Project (LDP)
http://metalab.unc.edu/LDP . These sources of information are highly recommended.
I found two books about PC hardware which contain a dedicated chapter about repairing laptops.
Author: Scott Mueller
Title: Upgrading and Repairing PCs
Publisher: QUE Corporation.
Author: Marc Misani
Title: The Complete Hardware Upgrade and Maintainance Guide
Publisher: unknown
Both books don't know about Linux and both are quite short about laptops. The book by Marc Minasi provides a little more information about laptops.
Authors: Alessandro Rubini, Andy Oram
Title: Linux Device Drivers
Author: Stephen J. Bigelow
Title: Maintain and Repair Your Notebook, Palmtop, or Pen Computer
Publisher: McGraw Hill Text, September 1993
Review by Booknews, Inc. , January 1, 1994: A guide to performing routine maintenance and simple repairs to notebook, palmtop and pen computers. Covers such topics as how to diagnose and replace faulty LCD and plasma displays, and how to protect circuitry from electrostatic damage. Written with beginners in mind -- but some hardware experience would be helpful in understanding the subtleties and cautions involved. Annotation copyright Book News, Inc. Portland, Or. Though this book seems outdated I don't know a newer one.
Author: Frank van Gilluwe
Title: The Undocumented PC
Publisher: Addison Wesley Developers Press
Review by Craig Hart: There are two editions. Edition 1 has a purple cover, edition 2 has a grey marble background photo with brown-on-yellow text panel. Edition 2 is not much better than edition one - only about 10%; of the information has changed, although a lot of typographical errors have been corrected. This is an excellent book, because it not only lists the raw data required to program something, but it has lot's of explanations, how-to's and example programs.
Authors:
Gerald Reischl / Heinz Sundt
Title: Die mobile Revolution
Publisher: Frankfurt: Ueberreuter 1999
Some speculations about the future of mobile communication.