Dead tree. I buy hard copies of all of my books, I annotate, highlight, write, and erase all sorts of stuff. For academic articles I prefer PDFs though, I use Adobe Acrobat to annotate them the same way. I'm not sure where that puts me

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TC
Current stable:
- 2004 Mazda RALLYWANKEL
- 2007 Saturn sky redline
- 2004 Explorer...under surgery.

Past: 135i, GTI, 300E, 300SD, 300SD, Stealth