PSP Downgrader for all firmware

[GamerCon]

http://www.psp-hacks.com/2007/06/23/new-exploit-found-illuminati-all-firmwares-affected/

Fire up those PSP's, now you can have emulators no matter how many times you update!

 

[DBloke]

http://psp-news.dcemu.co.uk/

For loads more PSP things

 

[Shiftfallout]

http://psp-news.dcemu.co.uk/

For loads more PSP things

yep also a good site, not updated very often though. The best site around is psp-hacks.com and their forum is perhaps the best psp modding forum. I like the DCEMU website for its easy navigation and layout, one thing the psp-hacks lacks.