Games that Defined the Sony Playstation Portable (PSP) - RetroGaming with Racketboy
How to soft mod any Sony PSP without a Pandora Battery – Mark Fixes Stuff – Retro game repair and reviews
PSP Release: Despertar Del Cementerio 9.01 (PSP unbricker) - Wololo.net
Unbrick PSP 2000/3000 Systems - Pandora Battery Style! [Hardware Jig Required] | GBAtemp.net - The Independent Video Game Community
PSP Hacks [Book]
A look at the bounty for native resolution PSP emulation on the PSVita through its built-in PSP hardware - ColdBird says it's possible to do and not just a pipe dream! -