PS3 firmware 2.20 bringing BD-Live interactive Blu-ray this month | Engadget
How To Easy Install CFW On PS3 OFW 4.88 For Beginners in Just 14 Minutes - YouTube
Surprise! There's a new PS3 firmware update - here's what patch 4.88 does | TheSixthAxis
PS3 System Software Ver. 4.89 | XTREME PS
PS3 update includes PlayStation Plus - GameSpot
PS3 firmware update 4.45 locking up some consoles - Report - GameSpot
I purchased a PS3 backward compatible from ebay for a good price and I'm impressed how clean it is. However... It's still on firmware 2.50. Should I update the firmware? : r/PS3
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
Sony PlayStation 3 Console Gets Firmware 4.53 – Download Now