Timeless Apples in  General

• Power Plugs and Jacks and some notes by Apple
• Dim Laptop Screen? No problem. Replace the CCFL!
• Those Mysterious LCDs: matching models to panels
• Drive Compatibility Database! 
• Goodwill Computer Donation Sites, if all else fails.
• Apple Takeapart Manuals

Model-Specific stuff

• Apple Newton eMate 300
• MegaClam! Put a 1024x768 LCD into a 466 MHz iBook SE (Lime or Graphite Clamshell)) EveryMac.com respectively
• Apple iBook G3 12" and 14" | Powerbook G3 "Pismo"
• Resetting iBook/PowerBook PowerManagement Unit (must-have for evaluating multiple old batteries)
• Some Macs need a Firmware Update to run OSX. See Apple's comprehensive list.