Some helpful information when buying a ps3 (and how to identify one without knowing the serial model number) : r/PS3
Hackable PS3 models and information | GBAtemp.net - The Independent Video Game Community
How to Jailbreak a PS3 (with Pictures) - wikiHow
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PS3 Jailbreak - All Models (FAT/SLIM/SuperSLIM) - YouTube
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New PS3 models launching in Australia September 27 - GameSpot