Sony acquires a patent to dock PS2 / PS3 controller to PSP - GIGAZINE
The proper way of playing fighters on psp : r/PSP
Amazon.com: FunTurbo PSP Charger Cable, Playstation Portable Charger PSP Power Cord for Charging Sony PSP 1000 2000 3000 USB Data Cable & Charging Cord 2-in-1 (2 Pack) : Video Games
Testing PS3 "Remote Play" on PSP | WIRED
Gametech Bear to Release Accessory That Connects PSPgo to PS3 Controller
Sony Outs "Classic White" PS3, PSP "Monster Hunter" Edition And Pink PS3 Controller | TechCrunch
How To Connect a PS3 (playstation 3) controller to the PSPgo (playstation portable go) - YouTube
PSP Play with PS3 Controller(iR Shell + USBHost) - YouTube
How to Set up remote play on your PlayStation 3 and PSP « PlayStation 3 :: WonderHowTo
My current set up. Picked one total set up cost me about $50, including the the psp off marketplace. : r/PSP