Findings:
- The 520 Bridge
- Atari 5200
- Atari 5200 Game Programmers
- Macintosh PowerBook
- Movies where people do 31337 h4x0RiNg on a Macintosh PowerBook
- Powerbook G4
- Powerbook 1400
- PowerBook G3 (Wallstreet)
- 802.11b on black PowerBooks
- PowerBook Duo
- PowerBook G3 (Pismo)
- PowerBook G5
If you Log in you could create a "PowerBook 520" node. If you don't already have an account, you can register here.