PS3 Firmware Update Increases Online Save Storage - Game Informer
PS3 Firmware Update 4.87 Is Out, Here Are The Details
Tweets with replies by Darthsternie (@Darthsternie) / Twitter
Sony further isolating PS3 and Vita from PSN in new firmware updates
PS3 System Software 4.89 Update Live, Don't Update Your Firmware! | PSXHAX - PSXHACKS
Upcoming PS3 3.21 firmware update removes Other OS functionality, adds nothing
PlayStation 3: Sony releases Firmware 4.86 for their 13 year old console - HFW 4.86 released, SEN Enabler updated & PS3HEN to be updated soon due to no kernel changes! - Wololo.net
PS3 System Software 4.89 Update Live, Don't Update Your Firmware! | PSXHAX - PSXHACKS